After updating earlier this week with the EFL Processor update and the Superdrive update, each time I bring my MBP out of hibernate or log on the CD drive starts to run like it trying to load a disc. But there is no disc inside to cause the drive to think its loaded. It will do this 3 or 4 times before giving up. The noise is annoying especially when at the library studying for finals. Any ideas as to why it does this? Possible to rollback the update? Thanks!