I recently blogged about a bug I found in Visual Studio where it crashes when you have undocked toolbar windows and try to run your solution. It only happens after upgrading to SP1 (VS 2008 and .NET 3.5) and running Windows Server 2008.
Well, after working with Microsoft on this, they are going to address it in a future patch or release!
Here's my post with a link to the Microsoft Connect site where I submitted this bug. I just wanted to update everyone, and urge you to check out Microsoft Connect and submit anything else you find. Microsoft gives us amazing tools that allow us to do amazing things. But the onus is on us to make sure that we give them the feedback they need to continue making us successful.