LiveUpdate Crashes Immediately on Opening & Auto Protect Fails

Hello!

 

I had some problems with Norton Auto-Protect, so I reinstalled both Antivirus, LiveUpdate, Auto-Protect, etc. but I still received a message on startup:

 

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I tried opening the Preference Pane for Auto-Protect from System Preferences, but then I received a dialogue box:

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I am running a 2.8 GHz Intel Core 2 Duo Macbook Pro with 4 GB of RAM, and normally, this message would not bother me, but I had not received this message before the reinstall. (I had previously installed from my external hard drive [WD My Passport 320 GB]; the DMG file was on the external hard drive, and then I copied it over to my Desktop to reinstall.)

 

In addition, when I attempt to open LiveUpdate, I immediately receive a dialog box:

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Before the re-install, this never occurred, and LiveUpdate was functioning properly. I have not once managed to run the application successfully after the reinstall

 

I can post the full crash report if it would be of any help.

 

I hope for a speedy response! :)

 

Thanks,

 

JT