I installed Vista last nite in 2 hrs. I did exactly as was said in the instruction book. Vista installed with ease! Dont know what was so difficult about it. I wish all my upgrades were as easy! My System: Lat. D620 1.0gb ram, IntelGraph950, 80gigHD, 350Bluetooth, DVD+/-RW, Intel 3945WLAN (802.11a/g)