Q1- I *think* I read somewhere that Rollback (RB) does its own defrags. If so, will it foul up RB if I defrag my hard drives? Q2- I have some lost chains on my C drive. Will it foul up RB if I let ScanDisk fix those lost chains? Q3- Is there a *better* program than ScanDisk for repairing lost clusters, lost chains, directory problems, etc? Any suggestions/replies will be greatly appreciated.