Stupid Thinkpad X200 keeps BSODing when I try to install XP SP3 via the CD drive so I had to do it thru USB. USB install wont' recognize the SATA HDD so I had to change the mode in bios to COMPATIBILITY. Will it mess up my computer/Windows when I go back in BIOS and change it to "AHCI" mode? Furthermore, where do I install the SATA drivers in Windows, etc.?