Try rebooting whilst holding down the SHIFT key for a safe boot. Then go to Utilities folder & open Disk Utility. Repair permissions. Then reboot normally. See if that helps. If not, reboot using the OSX install disk & repair disk using Disk Utility from that disk.
You didn't drop or knock the iBook did you. Sounds like something's become corrupted for some reason.
BTW there are no OSX viruses. |