I have a new 800MHz iMac with SuperDrive, 512MB RAM: I've been using AOL Instant Messenger for the past two weeks without too much trouble, but now it locks up immediately after signing in, as my buddy list pops up and my stocks just start to scroll. I don't believe I installed any other software just prior to this problem appearing. I have uninstalled AIM and reinstalled it, but to no avail. Does anyone else have this problem or know what the problem could be? This seriously sucks. Also, is there some other program by which I could IM AIM, Yahoo!, MSN users, etc.? Thanks for the help.