do you tell it to never remind you again about the wga? if you do you should never get the message again... UNLESS, they make an update to WGA then you will have to tell it to ignore it again... since windows sees it as a "new" update
I thought it was just me, until another FReeper mentioned the problem, and a few others chimed-in too. The changes are probably why it ignores my request. I bet it's purposeful since MS is pushing WGA as hard as it can, including putting in the "Critical Updates" category to scare unknowing people into installing it.