For a long time, on my old IDE HDD, Vista X64 ran fine and fast and really well with my Q6600 4Gig ram and Geforce 8800GT. Recently when I moved up to a SATA HDD, ever since installation, I can actually FEEL the instability of the OS. Drivers giving me problems, BSOD and such... Anyone know why? The only thing I changed was my hard drive, which I clean formatted, but how would this do anything?