AAW Site Responsiveness
I recently installed a "WildBlue" satellite antenna and a new desktop. The AAW site is more responsive than most, but the satellite connection is erratic and it's hard to draw any definite conclusion on anything. I too have noticed some variation with time of day.
If you open a COMMAND PROMPT window and enter TRACERT AAWFORUM.ORG you will see all of the different legs your message traverses just to get to the AAW site. I just did and it took 21 hops. Your delay can be at any one of these points. Unfortunately this may change each time you do a tracert. My only point is that the trouble can be anywhere from your computer to AAW's server.
TRACERT shows time taken on each leg, but frankly I can't make much sense out of it (I've been retired too long). In any case I'm sure an excessively long one would be a clue.
Finding the command prompt window is a challenge depending on your version of Windows. With Vista it's Start (or whatever that danged thing is in the lower left of the screen), All Programs, Accessories, Command Prompt. If I remember correctly older versions it's Start, Run, then enter CMD.
This isn't likely to be much help, but I'd hate to see you throw your computer out and find that's not the problem (unless you are just looking for an excuse to buy a new one).
Back in October when I bought my new computer I couldn't even access the AAW Forum (There is a long thread on this, with help from several folks). Turned out to be some obscure setting in the new computer that conflicted with something WildBlue requires. Didn't affect anything except the AAW Forum. Just keep tweaking those darned browser settings.