I buy a used G4 which was reformated and has newly loaded OSs, OS 9 and OS X. OS X needed to have its setup finalized so when I booted into it, I finished answering the questions, added my usual password and registered it in my name. I then go online and it finds upgrades but my password is required yet the one I added isn't recognized (doesn't work). I contacted the seller of the used computer just to ask him if (by chance) he added any other passwords and he did (at some point) yet that one doesn't work either. He then suggested that I: (quote) "check in the System Preferences -go to System - Accounts. Only you should be listed there. Try unchecking the automatic log-in check box, go to the Apple menu, and log out - then re-log in using your user name and password" (end quote). I should have first created another user and password (in retrospect) but I didn't and now with the "auto log-in box" unchecked, it wants my password to begin OS X BUT (as before), MY only PW doesn't work nor does his or any others I use on my other 4 PCs here in Windows 2000. In Windows 2000 or Windows XP, you're not getting past the PW screen w/o the PW so I'm thinking that now with OS X, I'm screwed w/o the OS setup disc (which I don't own either btw). I don't know why my chosen PW won't work (tryed with/without caps just in case that was on before) yet I'm locked out. Any suggestions?