I'm having some problems with two different iMac G3s, both are 233mhz w/160mb RAM. I got them for free when my Dad's school got rid of them. I installed a fresh copy of 10.2.8 and now one of them shuts the screen of about 30 minutes after using it, the other maybe an hour. So they do work for a while, but not for a lot of time. Also, when I tried running Software Update to get some security patches it immediately freezes, that goes for both machines. They both have the most current firmware (1.2 is the most current for that gen iMac according to apple). Any ideas? My fiance would like to use one of these for her classroom as a typing machine. I tried 9.2.2 on the machine that lasts for an hour and it seemed to run much better, but I only ran it for 1-2 hours so I'm not sure if it would freeze later on or not. I didn't keep 9.2.2 because I was having issues finding programs that would install without having a "library error."