Visual Studio 2010 workflow designer Shows Build Tasks Without Borders

I'm having a display problem with the TFS build workflow visualizer in Visual Studio 2010.

Steps to reproduce:

1) Run devenv /safemode

2) Open DefaultTemplate.开发者_开发技巧xaml from source control. (Mine has not been modified since TFS created the project)

Expected behavior: All tasks displayed with border

Actual behavior: Only the currently selected task has borders displayed

I've never used the build workflow editor on this machine so I have no idea if it ever worked. ReSharper 6.0 was installed recently, but I uninstalled it and it had no effect.

Has anybody else seen behavior like this? Or know how to fix it?

Environment:

Microsoft Visual Studio 2010 Version 10.0.40219.1 SP1Rel Microsoft .NET Framework Version 4.0.30319 SP1Rel

Installed Version: Ultimate

Microsoft Office Developer Tools 01019-532-2002102-70357

Microsoft Visual Basic 2010 01019-532-2002102-70357

Microsoft Visual C# 2010 01019-532-2002102-70357

Microsoft Visual F# 2010 01019-532-2002102-70357

Microsoft Visual Studio 2010 Architecture and Modeling Tools 01019-532-2002102-70357

Microsoft Visual Studio 2010 Code Analysis Spell Checker 01019-532-2002102-70357

Microsoft Visual Studio 2010 Team Explorer 01019-532-2002102-70357

Microsoft Visual Web Developer 2010 01019-532-2002102-70357

Coded UI Test Editor 1.0

Crystal Reports Templates for Microsoft Visual Studio 2010

Hotfix for Microsoft Visual Studio 2010 Ultimate - ENU (KB2522890)

Hotfix for Microsoft Visual Studio 2010 Ultimate - ENU (KB2529927)

Hotfix for Microsoft Visual Studio 2010 Ultimate - ENU (KB2547352)

Hotfix for Microsoft Visual Studio 2010 Ultimate - ENU (KB2548139)

Hotfix for Microsoft Visual Studio 2010 Ultimate - ENU (KB2549864)

Hotfix for Microsoft Visual Studio 2010 Ultimate - ENU (KB2565057)

Microsoft Visual Studio 2010 SharePoint Developer Tools 10.0.40219

Microsoft Visual Studio 2010 Ultimate - ENU Service Pack 1 (KB983509)

Microsoft Visual Studio 2010 Visualization and Modeling Feature Pack 2.0

NuGet Package Manager 1.5.20902.9026

Theme Manager 1.0

Package for managing Visual Studio color schemes

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It's more involved than this. After much googling and trying, I managed to get the flow to render correctly by:

1. setting the default theme in the "Visual Studio Color Theme Editor" Theme menu.
2. disabling the extension and restarting VS
3. -at this point the flow is displayed as it should -
4. enabling the extension again
5. setting my theme again (and thus getting rid of the "punch in my eye" default color scheme.

The problems now is that as soon as I restart VS again, I'm back to square one, i.e. no borders.

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Package for managing Visual Studio color schemes

I had the same problem. It went away when I disabled the Visual Studio Color Theme Editor extension.