Hi - I searched around to see if this issue has already been discussed, but I didn't come across it in existing threads. I think I deleted some files from (perhaps) my "/user/Library" folder which caused me to not be able to add users, even though I am my Mac's administrator (PB 15" 1.33GHz 60G - the ones that came out around April 2004). I have had this problem while running OSX 10.3.3-10.3.8. This is what happens: - I go into /SYSTEM PREFERENCES/ACCOUNTS - I click on the "+" button to add a new user, but nothing happens - nothing at all! No error messages, no (apparent) change, visually, in the Accounts dialog box. I worked w/ Apple Support over the phone for approximately 30 min., and they couldn't solve the problem. They told me to re-install the OSX from my intallation CD's. They said to choose the archiving option when re-installing (and to preserve user's folders, network settings, etc.) instead of choosing the option that erases the disk and installs the OS again. Well, I did that, and the problem still exists. The symptoms don't seem to have changed at all. When I first got this Mac and installed the OS, before I fiddled with removing files that I wasn't sure about (hehe), I was able to add new users (when logged in as the administrator). I'd rather not have to re-install the OS using that other option - to erase the disk and install. I think mainly, that would be a pain, because I'll have to re-install and re-configure a bunch of app's and other things. Does anyone think s/he knows the solution to my problem (aside from the erase & re-install)? Thanks.