I'm getting ready to update a 3.4 P4 system from XP Pro to windows 7 (32 bit). The MB is an Asus PC4800-E. I have a WD 320GB Sata drive attached to the Promise onboard controller. The Win7 upgrade advisor says: WinXP Promise SATA378 (tm) IDE Controller Promise Technology Not compatible This device isn't compatible with Windows 7. There are obviously no Win7 drivers on the Asus website, only WinXP drivers on the MB CD. Am I assuming right that the Win7 installation will fail due to "incompatible drivers" or will not be able to see the hard drive? I realize I may have to load drivers during the install (just like the F6 routine loading XP), but what drivers will I use? The P4C800-E board is very common so someone must have attempted an install to a SATA HD. Any help will be appreciated. I don't want to buy windows 7 if it will not install. Everything else is fine according to the upgrade advisor.