I'm thinking of upgrading to Vista x64, but I don't want to do it if rFactor doesn't work properly. I have a Dual Core processor (2 x 3.2Ghz) with 4Gb of RAM - is there anybody else who runs rFactor in the 64-bit version of Vista? If so what has it been like? Also what's the performance like? Any teething troubles? My other considerations if it works OK, is going to be the hardware I have - like my trusty Saitek R660 - which I'll research after this.