Do you have any third party add-ins for VS? If so, disable them and try again. VS 2010 uses a different add-in methodology than VS2008. If you don't update third party tools, they may cause problems.

>Under Windows 7 64 bits, I have all kind of crashes in VS 2010.
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>Sometimes, I started it and it says right away that it has to close. I restart and all is ok.
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>Sometimes, it crashes right in the middle of everything. I restart and all is ok.
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>I am not sure if this is due to bad memory. As, since I moved to Windows 7, we also changed for 4 - 2GB new memory sims. This totals 8 GB. I would like to collect feedback from other developers who also use that environment. I also had 3 blue screen of death BTW. It's been a while since I had those. When those occur, I have to reboot. So, usually, I have the PC up and running for months. It is not the same game since I moved to this new OS.