Newboy

Hi, I recently installed defraggler on my Vista with SP1 system. But it is running extremely slow. I dont know if I need to change any settings, but it took a whole night just to defrag 44% of the drive. I have a 300GB velociraptor with only 105GB used. Is this how long defraggler takes to defrag a drive. I used to remember XP only took about an 1 hour or so even for bigger drives. Is there something in Vista that is making it defrag so whole. Cheers Newboy.