Ugh! I wish I'd known about this when I bought my previous Toshiba Satellite! It had the nVidia GeForce 8700M GT. From the get-go, it had very strange problems, such as the screen resolution being reduced to the lowest upon bootup, UT2004 freezing with looping sound, then any media at all freezing with looping sound and eventually just BSOD after BSOD, always referencing something being wrong with the RAM or HDD, both of which tested fine in scans.
Now I'm wondering if all the problems I had with the damn thing weren't due to nVidia's incompetence.