I recently acquired a used Ti 800 Powerbook and I have been having lots of problems with it crashing on me when I use safari. The computer just freezes and the only way to fix it, is to do an emergency shut down. The mouse won't even move. I've only experienced these problems when running safari, even after the new 1.2 update, things aren't fixed. This seems to me to be software related. Has anyone else experienced such problems? Thanks.