Did you received complaints from your AOL users that they have problems using your Joomla powered site? Did you read in Joomla forums that other users and administrators have the same problem, namely that the last few 1.0.x releases of Joomla do not properly support AOL users?
I did, and searched the web for some solution. This way I had came across the Eric's blog, where I found the following hack, which worked for me.