The controls\solpartmenu folder contains a xml file called spmenucaps.config.  Inside it you will see how each browser is identified and assigned abilities on whether it supports XMLParsing, XMLDataIslands, Transitions, and UpLevel (rendering).  It decides this based on the browser's UserAgent. 

I don't know what browser AOL for the mac uses, therefore I don't know its capabilities.  I also don't know what useragent it sends.  To simply have it render downlevel and make the assumption that AOL is in the useragent somewhere, you could add something like

 <functionality nm="UpLevel" desc="Renders Uplevel">
  <supports>
...
  </supports>
  <excludes>
   <browser contains="AOL" />
  </excludes>
 </functionality>