Hello uilleann4,
please accept our sincere apologies for this unpleasant situation.
Did you use modified AVG RescueCD tool for CD and USB mediums described at FAQ 4080 (recently with video tutorial), which contains automatic solution, when affected computer is booted from it.
In case the modified AVG RescueCD did not solve the error, please use the non-modified version of AVG RescueCD from this website. Boot the computer from it. In AVG RescueCD interface choose menu Utilities -> Midnight Commander. There navigate to folder /mnt/sda1/program files (x86) (path depends on used partitions) and rename (by F6 key) AVG folder to something else.
Then start the computer again. It will be needed to (rename the AVG folder back in operating system and) repair AVG installation to get everything working properly.
What is the current situation?
Thank you for your cooperation and patience
I didn't want to start another one of these but it looks like I need to.
I am fairly computer savvy for a non computer person (for a geologist), I have built PC's, but that is fairly easy.
My computer crashed last Wednesday, like most others. The operation system is Vista. But I can't boot at all. I can get to the point where it asks about starting in the various Safe Modes or to start as a normal start. None work.
I have tried the reboot USB file and the reboot CD file. I burned the CD as a Bootable file like the AVG site tells us to do, luckily my Daughters computer works (Windows 98 SE, still the best Windows program).
I keep reading these forums hoping to find a solution. Most rely on your computer working to some degree. It has been almost a week without my computer (and I hate the TV, but I am reading more).
So, what do I do now?
Thanks in advance.

Chowhound
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GameFAQs
GameSpot
Giant Bomb
TechRepublic