Yep, adblocking screws with quite a few things. Even non-ad gif animation in some tours.
Also, I've found the Privacy blocker makes it so I can't get through to my paid feeds (Voyeurdorm, ect) in my members area if I have the privacy blocker turned on because it won't send the URL of where I'm coming from to the next page (which the paid feeds need to know to make sure a paying webmaster is sending the traffic from his site).
I just turn both of those features off, and love the other features. I also don't use IE anymore, and LOVE Mozilla Firefox's Ad blocker. Get Firefox .8 at
www.mozilla.org