Anyone else get this or suffer from this? I am using Vista and VS 2008 and when I goto open a Web Site it literally takes 2~3 minutes for the dialog box to show up. Once i actually select a website it's not a problem but getting to that point hangs VS really bad.
Make sure it is stored on your local hard drive. Storing solutions on a UNC (network path) makes Visual Studio do some weird checking. I thought this was fixed in VS 2008 SP1, I may be wrong though. Try out SP1 if you don't have it.
I'm sorry that I can't offer a solution on Vista but, after experiencing the same thing, I switched back to XP and the problem went away. You might even want to do what some of our other technical folks do: stay on Vista but run XP in a virtual machine. Assuming that you have plenty of RAM, you'll notice minimal performance impact on reasonably new computers.
I wonder if you're hitting an issue similar to this:
http://blogs.technet.com/markrussinovich/archive/2006/11/27/532465.aspx
Might be worth attaching the debugger to VS to see what it's doing, it may not be the same issue, but you should get some insight.
HTH
Kev