"why you had the Use a Proxy Server enabled in the first place"
I dunno, beats the Pi - uh- Proxy out of me. Proxy Server don't mean didley to me. Only thing I can think of is it got checked when I installed something. Trouble started after installing something. Here is the order of my fevered attempt to regain control of my very own payed for el cheapo readymade computer:
Inst SP3, Uninst AVG 7.5, Inst AVG 8, Uninst AVG 8, Inst AVG 7.5, Uninst SP3, Uninst AVG 7.5, Inst Avast 4.8.
The instructions at this site
http://support.avast.com/index.php_m=knowledgebase&_a=viewarticle&kbarticleid= may be a clue but I don't recall doing what it says there or having any reason to even look at it. It refers to ZA but it must mean ZA Pro and Me run ZA Free.
The AVG 8 caused a different problem - if I opened 3 browsr windows - ie 3 sites - it acted like the comp was out of resources which it couldn't have been since it has 40gigs free HD and 1 gig ram and I don't do photos, music, dvd burning, TV, multimedia stuff of any sort etc etc just take care of personnal business.
Incidentally I initially went into Services and disabled all the Avast services. Even then clcking on the desktop shortcut starts the memory test. Can't beat it to dea-- Oh I already said that.
Well thats the end of my tale of woe - you can start breathing again. Thanx for the come back.