iMac goes haywire after installing updates
Hi. I have a classroom of 16 iMacs which are about 5 years old. One of the iMacs starting taking about 10 minutes to log anyone in. I tried running Disk Warrior, fixing disk permissions, and repairing through disk utility. Nothing worked. I then installed Snow Leopard over the install and that seemed to fix everything. The only problem is that when I install any updates to get the OS up to date it goes back to taking forever to log anyone in. Any ideas? I about to wipe the computer and start fresh.