I have an iMac running Bootcamp. It's one of the latest versions of the iMac 21.5 incher's, in BootCamp, the system settings says it sees 4.0GB of ram but only 2.23GB's are usable. When i run games it's using 90% of my RAM, according to the widget thingy, what's up? Do i need to setup windows 7 to recognize and use all 4.GB? Nevermind, it's cause I"m on a 32bit version, not 64. my bad.