Maybe AOL changed some settings on your computer. I remember a few years ago when AOL got into some trouble with PC users by messing with internet settings so much in M$ Windows that only AOL's internet software would work and no one else's. I think this was an embittered fight over "control" of the PC between AOL and M$. Naturally, people with more than one ISP went through many headaches. I don't know if AOL does the same thing with Macs. I don't use AOL because I hate it too.
Try uninstalling AOL and see what happens.
2.0 GHz Intel Core2Duo, 4 GB RAM, LaCie BigDisk Extreme 500 GB HD, External Pioneer A109 DVD superdrive, External LiteOnLiter CD burner, iSight video camera, 5th generation 60 GB video iPod, 4th generation 40 GB iPod, 1st Generation iPod Touch, Philips 32" HDTV with HDMI input, KDS Radius 19" LCD Display, Mac OS X 10.6.7.