Problems after installing Visual Studio 2010 SP1?

I installed VS 2010 SP1 last week and have noticed a couple of problems.

1. My Class template disappeared. I can no longer right-click and select Add > Class... or select Add > New Item... > Class
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2. ASP.NET MVC 3 will not install (Note: I installed the SP1 stand-alone version first, not the one from MS Web Platform Installer that includes MVC)

Anyone else see anything odd?

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@dandax : For the first issue that you mentioned can you goto the [VS Install Path]/Common7/IDE/ItemTemplates/[CSharp/VB]/Code and Verify the Class.Zip file is present? In any case, if you think you encounter these issues consistently, then I would suggest you adding a bug to http://connect.microsoft.com/VisualStudio , where you will get the right help.

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Microsoft has published a Knowledge Base (KB) support article on the most common causes of this failure as well as solutions:

http://support.microsoft.com/kb/2531566

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One of my colleages had issues with Team Foundation Server after installing SP1.

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Since installing VS2010 SP1, Visual Studio crashes occasionally and Outlook crashes constantly when I click 'Send', 'Reply', 'Reply All', 'Forward' or 'New'.

I'm currently going through the lengthy process of uninstalling the SP (which will apparently render may VS components inoperable), uninstalling VS2010 and then just re-installing VS2010.

Very unhappy.