Yeah... Personally, I'd like to see the whole MS organisation try to swim to Japan..... From Chile. Yes, Windows only allows 4096 in any one partition... more MS idiocy...'s an old time numbers problem they've neglected.... Must be a feature, then... the scratch disk that defrag won't touch... is that one of the ones that has the win scratch on it?... defrag WILL NOT touch the Windows ones, as long as they're defined as for win cache files, but the photoshop cache is a complete variable, and when you close it, it becomes available. at least, it should... photoshop even tells you that. windows, itself, shouldn't need more than one cache... you might try just leaving the one on c drive... that immovable block MAY be files that windows installed. if you're running XP, then indexing may be turned on. if that's the case, you'll see "System volume files" on EVERY partition you have. defrag will not touch that. one of the limits that defrag has, is that it requires a certain amount of free space on the drive it's working on..... I think it's about 30%. In re-reading your last, I think, (Maybe), I see a misunderstanding. Defrag does not move ANY data out of the partition it's working on... think of it as "shuffling it around" sort-of like being in a locked room, with boxes that need to be moved.... too many boxes, and you can't do it. maybe this might help. Lou.

"..... and that was when things got interestiing."