iMac will not boot

J

jjn3

Registered
I have a 27" iMac, 8gb with OS 10.6.2

I recently replaced Norton Antivirus with Intego X6; I read an article on teh problems caused by all AV software and decided to remove X6. I used the uninstall utility to remove both Norton and X6.

Presently my iMac will only boot in safe mode. If I do a normal boot, I get the standard startup routine, however it ends with the display showing a circle with a slash thru it. I have used Onyx to purge cache, and used disk repair/permissions repair. The one error I get that will not repair is listed below:

Warning: SUID file "System/Library/CoreServices/RemoteManagement/ARDAgent.app/Contents/MacOS/ARDAgent" has been modified and will not be repaired.

I tried reinstalling OS with the upgrade disk and the install hangs with no activity. Any help appreciated!!!!
 
Run Apple hardware test by booting with your original install disks holding the D key to test all of the hardware for any obvious failures. Might want to loop it a few times. It looks to me like the RAM is questionable or a bad kext.
 
The Snow Leopard install can take quite a long time, and might appear to hang at some point.
How long have you waited for it continue? You should give it an hour or so.
 
Said about one hour when I started it; bar was moving etc. Came back 30 minutes later to a gray screen with the apple in center, no install box, no disk sound. Boots fine in safe mode; found a bad .plist file though.
 
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