Yep, I got the PIII 550 up and running. It's currently chugging through a Tinker WU (so is my main box, oh well. I think the computer I borged is doing a tinker WU as well... God, I hate these thigns. They take so long on the PIII/P4s... A CeleronM 2.8 should be able to do a WU in less than a day, right? Why has this thing taken a week for one WU? Granted, my girlfriend turns it off at night, but still...