I have always formatted my hard drives in the fat32 format due to not needing high security as a home user. I recently reinstalled all my software, including xp pro and decided to try ntfs. To my disappointment, games such as flightsim 2002 seem to stutter quite a bit and when it does this I have noticed the hard drive light is on. Is ntfs less effective for running games? or should I look at something else. All drivers/settings are exactly the same as before the reinstall and I though as everything is now defragged there should at least be some improvement.
I use NTFS (recent changeover from FAT32,due to new drives (SATA) access prog only offered NTFS)I also suffer stuttering in games,but I started getting this when I "upgraded" to DX9,so I hunted down a DX removal prog,and reinstalled DX8.1.My games ceased stuttering,so I would look at a similar thing on your puter(change from DX9,unless your Graphics card DEFINITELY runs DX9)