This started happening some time back. Late last year I think. Using this link, and only for the main forums page. The sub forums work just fine with no errors at all when AM is active.
http://ls1tech.com/forums/
Most of the time, the page partially loads, then auto-reloads, then either gives me an unable to open the internet site, operation aborted message or continues reloading 2 or 3 more times and then I get that error or the page loads just fine. It loads fine maybe 10% of the time. It only continuously reloads and gives the error message when AM is active. If I turn it off, I can reload all day long and get no errors, autoreloads, etc. Remember, sometimes it loads fine the first time, so it may need to be reloaded more than once to get the error. This is also for IE. I do not get this issue in Firefox.
I'm running the current beta with...the 4099 update as of now.