On Jan 25, 2008, at 9:42 AM, Robert wrote: > So far nothing has worked. I have tried everything that everyone > has suggested. If I reboot I will have 40 gb and I can watch it > drop. Last resort will be to back up and reformat and do a clean > install. Not looking forward to doing that but it will be a last > resort. It would be nice to figure out what is causing this. As I > had 10.4 on this drive before installing 10.5 I wonder if there is > something that I had on the drive that 10.5 does not like. Anyway > thanks for all of the suggestions. Have you tried a deep-cleaning with AppleJack?