I have two instances of VSTS running but am only working in one. I just copied a fragment of code from an aspx file. This has happened before. Build376, VS2005 JetBrains.ReSharper.Util.InternalErrorException: Length cannot be less than zero. Parameter name: length An exception has occurred ---> System.ArgumentOutOfRangeException: Length cannot be less than zero. Parameter name: length at System.String.InternalSubStringWithChecks(Int32 startIndex, Int32 length, Boolean fAlwaysCopy) at JetBrains.ReSharper.Asp.Impl.AspDocumentManagerImpl.ProcessDocumentChange(DocumentChangeEventArgs d, IDocument codeBehindDocument, IRangeTranslator translator) in c:\Agent\work\Server\ReSharper2.5\src\Asp\src\impl\AspDocumentManagerImpl.cs:line 508 at JetBrains.ReSharper.Asp.GeneratedDocumentServiceBase.Commit(IProjectFile file) in c:\Agent\work\Server\ReSharper2.5\src\Asp\src\GeneratedDocumentServiceBase.cs:line 131 at JetBrains.ReSharper.Asp.GeneratedDocumentServiceBase.CommitAll() in c:\Agent\work\Server\ReSharper2.5\src\Asp\src\GeneratedDocumentServiceBase.cs:line 172 at JetBrains.ReSharper.Psi.Impl.PsiManagerImpl.GeneratedDocumentsManager.CommitAll() in c:\Agent\work\Server\ReSharper2.5\src\Psi\src\impl\PsiManager\GeneratedDocumentsManager.cs:line 105 at JetBrains.ReSharper.Psi.Impl.PsiManagerImpl.PsiManagerImpl.StartCommitDocuments(List`1& list) in c:\Agent\work\Server\ReSharper2.5\src\Psi\src\impl\PsiManager\PsiManagerImpl.cs:line 661 at JetBrains.ReSharper.Psi.Impl.PsiManagerImpl.PsiManagerImpl.CommitAllDocuments() in c:\Agent\work\Server\ReSharper2.5\src\Psi\src\impl\PsiManager\PsiManagerImpl.cs:line 617 at JetBrains.ReSharper.CodeInsight.MiscActions.ControlClick.FindHyperLink(ITextControl textControl, Int32 x, Int32 y) in c:\Agent\work\Server\ReSharper2.5\src\CodeInsight\src\MiscActions\ControlClick.cs:line 293 at JetBrains.ReSharper.CodeInsight.MiscActions.ControlClick.HandleEvent(POINTAPI mouse) in c:\Agent\work\Server\ReSharper2.5\src\CodeInsight\src\MiscActions\ControlClick.cs:line 224 at JetBrains.ReSharper.CodeInsight.MiscActions.ControlClick.OnMouse(Object sender, HookEventArgs e) in c:\Agent\work\Server\ReSharper2.5\src\CodeInsight\src\MiscActions\ControlClick.cs:line 164 — End of inner exception stack trace — at JetBrains.ReSharper.Util.Logger.LogExceptionEx(Exception, String, Boolean) in c:\Agent\work\Server\ReSharper2.5\src\Util\src\Logger.cs:line 350 column 9 at JetBrains.ReSharper.Util.Logger.LogException(Exception) in c:\Agent\work\Server\ReSharper2.5\src\Util\src\Logger.cs:line 362 column 5 at JetBrains.ReSharper.CodeInsight.MiscActions.ControlClick.OnMouse(Object, HookEventArgs) in c:\Agent\work\Server\ReSharper2.5\src\CodeInsight\src\MiscActions\ControlClick.cs:line 185 column 9 at JetBrains.UI.Interop.WindowsHook.CoreHookProc(Int32, IntPtr, IntPtr) in c:\Agent\work\Server\ReSharper2.5\src\JetBrainsShared\Interop\WindowHook.cs:line 186 column 4