I ran my stock 2.66GHz Mac Pro for about a week doing everything, including alot of World of Warcraft. The day Bootcamp 1.1 came out I installed Windows on a separate internal hard drive. The next day after that I received my 2GB FB-DIMM upgrade kit from Other World Computing. That brought my Mac Pro to 3GB and I noticed a considerable increase in speed. Last night, playing WoW, sound was stuttering and my computer crashed 3 times. A screen actually came up telling me that I had to power off my computer, which I have NEVER seen before. Does this sound like maybe an issue with the RAM I bought or is there some known issue with WoW and intel Macs? I didn't re-install WoW on this computer, I copied it over from my G5's hard drive.