If you find a bug in Visual Studio, report it on http://connect.microsoft.com If the bug affects the version of VS that is in development at that time, there is a significant chance it will get fixed before the next release. Just this week I got confirmation...
I've had a weird problem on my development station for some time now. Every time I ended a debugging session of a C# project, visual studio froze for about 10 seconds. It also happened if I changed project settings, but I never had any problems with...