i have been having a problem of sudden degrading in performance of my XP for weeks now , which the only solution i had was to format & start again. Now i have found out that XP sets the Transfer mode of my UDMA 5 HDD to PIO in XP!!! BIOS has it as UDMA 5 but XP wont, is there any solution to this ?? PS my HDD it listed on microsoft.com as a 'Designed for XP product"