Hi all, Attempting to fix a superdrive problem - http://forums.macrumors.com/showthread.php?p=7117099#post7117099 - I wanted to zap my pram. I've tried zapping the pram as described in the help pages....but I don't seem to be getting a normal pram reset ( from what I've read, you hold down command / alt / P / R on start up, let it beep twice, let go of the keys and let it restart. But if I hold down the keys, it never beeps, just restarts - if I keep the keys pressed down, it just keeps restarting. ). Any ideas?