computer background changed to radiation sign; error cleaner, privacy protector, spyware and malware protection installed; locked out of admin. privelages, firefox, spybotS&D; ie homepage hijacked, rerouted after 3 screen changes; no recognition from Symantec AV; military time displayed with "Virus Alert!"; Access to internet blocked, "insecure network detected, offers to rerout to fix, not to decline; caused internal error with XP SP2 install attempts; Start menu lost all programs and right side components, as well as log off option. Anyone know what malware caused this? I'm very curious to find out.