Hi! I just got a MBP last week, and took the awful step of throwing XP on there tonight in the unlikely event I ever need it (better safe than sorry I guess) and noticed a glaring difference. My model is the base 15", I added the 7200 drive, but nothing else, and Windows reports that my video card has 512MB of ram while OS X says it's the 256 (Which it's supposed to be). Any ideas what's up with that? Windows is XP Pro, SP3. Strange.