Safari quits with attempt to empty cache

Question

I recently updated to OSX.3.9 and stayed with QT 6.5.2 (need to stay at these versions on this particular computer). Safari v. 1.3.2
The only other change was a recent install of Flip4Mac wmv
Now I can't empty cache in Safari, it quits with each attempt and does not empty cache.
I'm using a G4 450 single processor.
I've repaired permissions and that did not help.
Mac G4 450 SP   Mac OS X (10.3.9)  

Answer 1

Wish I had read your reply before I dug myself in deeper. I'm now reading Dr. Smoke's articles, which are very good, but I'm getting overwhelmed trying to narrow it down to the simplest thing I can start with at this point.
The details of my now bigger problem are in another post to the Safari discussion, "blue screen, fails to boot". This problem is actually on my other startup disk, but now I can't restart back onto the one that was at least working.
I don't have the drives backed up, so want to avoid doing any "erase" type installs. I'll keep trudging through all the Dr.Smoke info, but if you have any further simple steps you think would help now, please let me know.
BTW, I just today discovered that I can do the "subscription" thing on these boards, so now I can track answers sooner.
Mac G4 450 SP   Mac OS X (10.3.8)