If you are seeing intermittent crashes with VS 2010
Some customers have been reporting intermittent crashes while using Visual Studio 2010, particularly during file save and build. We haven’t tracked this down completely yet, but many of the crashes seem to be related to an out-of-date version of the AnkhSVN extension. The newest release (2.1.8420 – note correction – 8400 did not fix the problem and is no longer offered on the AnkhSVN page) contains a fix that we believe solves the AnkhSVN problem. You can download the latest release of AnkhSVN here.
Gary Horen, Program Manager, Visual Studio Platform