
Log shows entries like this:
# SourceGear Vault Professional Server
2011-09-19 11:36:49.973 75.99.238.106 (75.99.238.106)-elisabeth : Server
error 500 Failed to load viewstate. The control tree into which viewstate
is being loaded must match the control tree that was used to save
viewstate during the previous request. For example, when adding controls
dynamically, the controls added during a post-back must match the type and
position of the controls added during the initial request. at
System.Web.UI.Control.LoadViewStateRecursive(Object savedState) at
System.Web.UI.Control.AddedControl(Control control, Int32 index) at
System.Web.UI.ControlCollection.Add(Control child) at
MantisControlsLib.LinkNotationViewer.LoadControls(Boolean escape) at
MantisControlsLib.LinkNotationViewer.OnLoad(EventArgs e) at
System.Web.UI.Control.LoadRecursive() at
System.Web.UI.Control.LoadRecursive() at
System.Web.UI.Control.LoadRecursive() at
System.Web.UI.Control.LoadRecursive() at
System.Web.UI.Control.LoadRecursive() at
System.Web.UI.Control.LoadRecursive() at
System.Web.UI.Control.LoadRecursive() at
System.Web.UI.Control.LoadRecursive() at
System.Web.UI.Control.LoadRecursive() at
System.Web.UI.Control.LoadRecursive() at
System.Web.UI.Page.ProcessRequestMain(Boolean
includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
2011-09-20 13:47:45.942 209-206-253-154.stat.centurytel.net
(209.206.253.154)-josh : Server error 500 Failed to load viewstate. The
control tree into which viewstate is being loaded must match the control
tree that was used to save viewstate during the previous request. For
example, when adding controls dynamically, the controls added during a
post-back must match the type and position of the controls added during
the initial request. at
System.Web.UI.Control.LoadViewStateRecursive(Object savedState) at
System.Web.UI.Control.AddedControl(Control control, Int32 index) at
System.Web.UI.ControlCollection.Add(Control child) at
MantisControlsLib.LinkNotationViewer.LoadControls(Boolean escape) at
MantisControlsLib.LinkNotationViewer.OnLoad(EventArgs e) at
System.Web.UI.Control.LoadRecursive() at
System.Web.UI.Control.LoadRecursive() at
System.Web.UI.Control.LoadRecursive() at
System.Web.UI.Control.LoadRecursive() at
System.Web.UI.Control.LoadRecursive() at
System.Web.UI.Control.LoadRecursive() at
System.Web.UI.Control.LoadRecursive() at
System.Web.UI.Control.LoadRecursive() at
System.Web.UI.Control.LoadRecursive() at
System.Web.UI.Control.LoadRecursive() at
System.Web.UI.Page.ProcessRequestMain(Boolean
includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
2011-09-20 13:47:50.817 209-206-253-154.stat.centurytel.net
(209.206.253.154)-josh : Server error 500 Failed to load viewstate. The
control tree into which viewstate is being loaded must match the control
tree that was used to save viewstate during the previous request. For
example, when adding controls dynamically, the controls added during a
post-back must match the type and position of the controls added during
the initial request. at
System.Web.UI.Control.LoadViewStateRecursive(Object savedState) at
System.Web.UI.Control.AddedControl(Control control, Int32 index) at
System.Web.UI.ControlCollection.Add(Control child) at
MantisControlsLib.LinkNotationViewer.LoadControls(Boolean escape) at
MantisControlsLib.LinkNotationViewer.OnLoad(EventArgs e) at
System.Web.UI.Control.LoadRecursive() at
System.Web.UI.Control.LoadRecursive() at
System.Web.UI.Control.LoadRecursive() at
System.Web.UI.Control.LoadRecursive() at
System.Web.UI.Control.LoadRecursive() at
System.Web.UI.Control.LoadRecursive() at
System.Web.UI.Control.LoadRecursive() at
System.Web.UI.Control.LoadRecursive() at
System.Web.UI.Control.LoadRecursive() at
System.Web.UI.Control.LoadRecursive() at
System.Web.UI.Page.ProcessRequestMain(Boolean
includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
2011-09-20 13:47:55.035 209-206-253-154.stat.centurytel.net
(209.206.253.154)-josh : Server error 500 Failed to load viewstate. The
control tree into which viewstate is being loaded must match the control
tree that was used to save viewstate during the previous request. For
example, when adding controls dynamically, the controls added during a
post-back must match the type and position of the controls added during
the initial request. at
System.Web.UI.Control.LoadViewStateRecursive(Object savedState) at
System.Web.UI.Control.AddedControl(Control control, Int32 index) at
System.Web.UI.ControlCollection.Add(Control child) at
MantisControlsLib.LinkNotationViewer.LoadControls(Boolean escape) at
MantisControlsLib.LinkNotationViewer.OnLoad(EventArgs e) at
System.Web.UI.Control.LoadRecursive() at
System.Web.UI.Control.LoadRecursive() at
System.Web.UI.Control.LoadRecursive() at
System.Web.UI.Control.LoadRecursive() at
System.Web.UI.Control.LoadRecursive() at
System.Web.UI.Control.LoadRecursive() at
System.Web.UI.Control.LoadRecursive() at
System.Web.UI.Control.LoadRecursive() at
System.Web.UI.Control.LoadRecursive() at
System.Web.UI.Control.LoadRecursive() at
System.Web.UI.Page.ProcessRequestMain(Boolean
includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
2011-09-20 15:24:34.457 209-206-253-154.stat.centurytel.net
(209.206.253.154)-josh : Server error 500 Failed to load viewstate. The
control tree into which viewstate is being loaded must match the control
tree that was used to save viewstate during the previous request. For
example, when adding controls dynamically, the controls added during a
post-back must match the type and position of the controls added during
the initial request. at
System.Web.UI.Control.LoadViewStateRecursive(Object savedState) at
System.Web.UI.Control.AddedControl(Control control, Int32 index) at
System.Web.UI.ControlCollection.Add(Control child) at
MantisControlsLib.LinkNotationViewer.LoadControls(Boolean escape) at
MantisControlsLib.LinkNotationViewer.OnLoad(EventArgs e) at
System.Web.UI.Control.LoadRecursive() at
System.Web.UI.Control.LoadRecursive() at
System.Web.UI.Control.LoadRecursive() at
System.Web.UI.Control.LoadRecursive() at
System.Web.UI.Control.LoadRecursive() at
System.Web.UI.Control.LoadRecursive() at
System.Web.UI.Control.LoadRecursive() at
System.Web.UI.Control.LoadRecursive() at
System.Web.UI.Control.LoadRecursive() at
System.Web.UI.Control.LoadRecursive() at
System.Web.UI.Page.ProcessRequestMain(Boolean
includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
2011-09-20 15:24:40.457 209-206-253-154.stat.centurytel.net
(209.206.253.154)-josh : Server error 500 Failed to load viewstate. The
control tree into which viewstate is being loaded must match the control
tree that was used to save viewstate during the previous request. For
example, when adding controls dynamically, the controls added during a
post-back must match the type and position of the controls added during
the initial request. at
System.Web.UI.Control.LoadViewStateRecursive(Object savedState) at
System.Web.UI.Control.AddedControl(Control control, Int32 index) at
System.Web.UI.ControlCollection.Add(Control child) at
MantisControlsLib.LinkNotationViewer.LoadControls(Boolean escape) at
MantisControlsLib.LinkNotationViewer.OnLoad(EventArgs e) at
System.Web.UI.Control.LoadRecursive() at
System.Web.UI.Control.LoadRecursive() at
System.Web.UI.Control.LoadRecursive() at
System.Web.UI.Control.LoadRecursive() at
System.Web.UI.Control.LoadRecursive() at
System.Web.UI.Control.LoadRecursive() at
System.Web.UI.Control.LoadRecursive() at
System.Web.UI.Control.LoadRecursive() at
System.Web.UI.Control.LoadRecursive() at
System.Web.UI.Control.LoadRecursive() at
System.Web.UI.Page.ProcessRequestMain(Boolean
includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
2011-09-23 15:45:20.547 209-206-253-154.stat.centurytel.net
(209.206.253.154)-josh : Server error 500 Failed to load viewstate. The
control tree into which viewstate is being loaded must match the control
tree that was used to save viewstate during the previous request. For
example, when adding controls dynamically, the controls added during a
post-back must match the type and position of the controls added during
the initial request. at
System.Web.UI.Control.LoadViewStateRecursive(Object savedState) at
System.Web.UI.Control.AddedControl(Control control, Int32 index) at
System.Web.UI.ControlCollection.Add(Control child) at
MantisControlsLib.LinkNotationViewer.LoadControls(Boolean escape) at
MantisControlsLib.LinkNotationViewer.OnLoad(EventArgs e) at
System.Web.UI.Control.LoadRecursive() at
System.Web.UI.Control.LoadRecursive() at
System.Web.UI.Control.LoadRecursive() at
System.Web.UI.Control.LoadRecursive() at
System.Web.UI.Control.LoadRecursive() at
System.Web.UI.Control.LoadRecursive() at
System.Web.UI.Control.LoadRecursive() at
System.Web.UI.Control.LoadRecursive() at
System.Web.UI.Control.LoadRecursive() at
System.Web.UI.Control.LoadRecursive() at
System.Web.UI.Page.ProcessRequestMain(Boolean
includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)