Just an update to let you all know how this is coming along for me.
At the suggestion of CharlesB,
I disabled the Link Scanner in my AVG AntiVirus software. Don't really need that anyway. BUT ... I've been on this notebook pretty solidly for the past 12hrs or so and no issues with browsers stopping after 1-3hrs so far.
I'm keeping my fingers crossed and hoping this really resolves it. Gonna put it thru a grueling test over the next 24hrs and if still no issues anymore then I will feel this has been resolved.
It still makes me wonder, tho,
as to why a link scanner from another product could affect browser
connectivity via ZA. But apparently it does.
I'm hoping this is the real solution and will let you all know for sure after tomorrow. Hopefully it'll be my last post here! ;-)
Rick aka CorpRebel