Nanny Jan,
Sorry you're still having problems. I've not heard of the AVG download manager causing a computer to switch off, very strange.
The actual AVG install file is around 62Mb in size, if you are using a 56k dial-up connection, then at maximum throughput it would take around 3.2 hours to download. So you would certainly need some method of resuming the download from your 2 hour cut off point.
The idea of AVG from a magazine cover disk is quite good if you are able to find one.
If you have no success, if you wish to, send me a private message with your postal address. I'll download the current version and send it to you on CD.
Regards, Paul.