it sounds like the load mechanism belt is slipping,
remove it, clean the belt and the "path" it travels in with alcohol
(91%) and a q-tip, re-install the belt, make sure you're not missing
any little "switch" settings, (they're ususally under the tray) they
can hang up a unit also. hope that works, keep me posted, as i'm
learning xbox's and ps2's, and will see this myself a whole bunch.
pray for peace...out...richie