Got this desktop which has been working fine, no problems, no bluescreens ,etc. Only issue is it has a small HD, 80GB Sata. I bought a 250GB Sata, cloned the drive, with no problems. Swapped drives, the computer booted to XP fine right away, but after 2-5 minutes, the computer will BSOD with BAD POOL HEADER (on ntkrpamp.exe). I swapped the old HD back in and the computer stopped BSOD'ing. Just in case, i tested the new HD with 2 different HD test (DFT and Seatools), both pass. I also ran a short memtest, with no errors. I attached the minidumps. Any help? Thanks!