I was finally able to erase and install tiger again (10.4.1) on my aunt's machine. Thinking I finally have a successful install, I left so my cousin could set everything up. The only thing I did before I left was run software update and it had 5 items to update: java update, macosx combo update (10.4.11), DVD update and the others I can't remember. It ran that, restarted then restarted again. After it came up, my cousin said it wouldn't launch software update at all and the only two programs he could launch were system preferences and itunes. Nothing else will launch. Restarts, shutdowns, etc., aren't helping. We suspected the machine of having a failing HD before but now im thinking it is the memory. Problem is...the DVD drive doesn't work so I can't just pop in the osx disk and try running disk utility and I can't run it from the applications folder. does this sound memory related, HD related or something else?