Hi abtekk !
Similar issue .. 5.0 didn't bring X on iMac .. then after upgrading to 5.1 current it worked .. but again I've lost it after a recent 5.1 upgrade .. since then I was working without X until I upgraded to 5.2 today .. but still X doesn't work .. :-) .. hence this thread
http://www.daemonforums.org/showthread.php?t=7326