Hello, my 32-bit Windows XP Pro duo-core HP Pavillion a1440n desktop system (going on 3 yrs old) that gives me the BSOD when I turn on my computer. It's caught in a loop and continues to keep rebooting when in the AHCI mode. If I switch the SATA mode in the BIOS to IDE, it boots normally. It first rebooted suddenly by itself one day when I was working on my computer...and after that it has never booted in ACHI mode again. Can anyone tell me how to get around this problem? shiri2@verizon.net