Visual Studio not re-opening solutions

Question

I've got a problem with Visual Studio.NET. Many times Visual Studio won't allow me to re-open a solution I've been working on when I start Visual Studio. I'll get the little revolving icon showing that it's connecting to the web server, but it just keeps going and the solution doesn't open. This happens quite frequently and is getting very frustrating. I've rerun the installation for Visual Studio and tried to repair the installation...no luck...same thing. Has this happened to anyone else or am I the only "lucky" guy? Any ideas on how to fix? Thanks.