I've got a 3-year old imac running Tiger 10.4.11 and a four month old replacement 500gb hard drive. So I was deleting some old files and decided to do the Secure Delete (the basic one, not the 35x overwrite option) Opened it up, got started. Everything going fine. I start getting the error messages about my rapidly-filling up hard drive and ignore them--assuming the computer's just reacting to the temp file being created. I know it's slow, so I check back a couple hours later. Judging by the blue bar it looks like it's 90% done, but now it says "Skipping" and I'm getting repeated messages about how the computer can no longer write the itunes library file. I closed itunes. Nothing changed. I left the Disk Utility alone for a while but it seemed to be stuck. So then I actually clicked on the "Skip" button. Nothing changed. Left it alone for a while. Finally got mad and decided to just reset. When my computer booted up (no problems) it said I have 1.67gb free on my hard drive. Before, I had something like 240. Now I know somewhere is a massive half-baked temp file. But how do I find it, and how do I delete it? I suppose I could just reinstall OS X, but that seems like a massive pain--especially since the computer IS running. Please, help!