This is followed by a crash dialog, which I dutifully report to the mothership, and then nothing. VS doesn't crash, it just hangs there and I can't kill the dialog, notice the Cancel button is grayed out. If pop-open process explorer because Google reveals that this has been an ongoing bug in VS 2005 since before it RTMed and it had something to do with handle counts. My VS handle count is 1,261.
I manually crashed it, and this time I DID lose some code because the nice Visual Studio Recovered Files dialog was nowhere to be found. If I wasn't going to trash this machine in a few days I would be installing VS 2005 SP1 beta right now. And good call not waiting on Vista compatibility fixes VS Team, get that SP out the door!