Don't mention DD to me! Absolutely worn out doing all the theme parks and coping with the 94F heat!! :0)
TBH1 I now see you cannot change this server box. My AVG program version is: 6.0.486 (Information Panel) and I reckon a recent update has made these server changes. You used to be able to use either 'grisoft.com' or 'grisoft.cz' for downloading.
If you still have problems, I suggest downloading a new copy of AVG from click here It should be up-to-date as well. TC