What? Good question.

In the middle of working I thought I'd add a new class to my project when low and behold I get a dialog box:

No Visual Studio template information found. Seel the application log in Event Viewer for more details.

Ok, so I open up event viewer and find this

Event Type: Warning
Event Source: Visual Studio - VsTemplate
Event Category: None
Event ID: 1
Date: 7/11/2007
Time: 4:31:56 PM
User: N/A
Computer:
Description:
The Visual Studio template information is out of date. Regenerate the templates by running 'devenv /installvstemplates' or reinstalling Visual Studio. Note: corrective action requires Administrator privileges.

For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.

Except a lot of them. I have no idea why this suddenly started happening. Well let's check google

http://traversee.spaces.live.com/blog/cns!660EC1EE75BC1F77!142.entry

http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=52248&SiteID=1

http://geekswithblogs.net/jeelz/archive/2007/04/03/110665.aspx

Sigh....I'll probably just run the command line as it seems to fix it. Hopefully it doesn't break ViEmu or R# or TD.Net.