Unity Crashing at Launch on Vista 64

Hi guys,
So I have been perusing the forums trying to find an answer that doesn't involve stuff I have already tried, but have come up empty handed.

The Unity editor crashes upon launch every time, and I can't figure out why. Here is my situation:

1. PC - Macbook running Vista 64 w/ Nvidia 9400m 2.4 GHZ Core2Duo 2 GB RAM with latest drivers and DX version. I have VC++ and VC# installed.
2. Running Unity as an admin with a DEP exception
3. Launched Unity while holding Alt to create a new project file
4. Have uninstalled, cleared registry and reinstalled multiple times
5. Turned UAC completely off

I have done all of the above and still can not launch the editor. Is there ANYTHING else anyone can think of? Maybe I need some weird redistributable?

Thanks so much