I installed my superdrive a couple months ago and it worked fine with idvd 3 but now idvd 4 it will not burn a dvd. I can burn data dvd's from my desktop though and the dvd icon shows up - just iDVD 4 won't. And another weird thing: the dvd tray is not opening until I restart the computer. This all seemed to start when I installed iLife 04. Any ideas?