Similar problem as "Conal" .. Have been having small problems so have opted for a new reinstall Win7 64bit.. so the problems begin!! put disk in gets to Install..then the a screen says it does not have a driver for my disk drive please locate one on my sys or on a USB??...only thing that has changed since the original install is that I changed the HD in the BIOS to AHCI (for TRIM on a SSD)..Tried Vista 64 bit and it has no problem loading!!...I suppose I could set the BIOS back to IDE, install then back to AHCI..Sys is the same including SSD 240g HD