I have an early 2011 17" MBP on Applecare. It has a couple of issues. One is a spot on the space bar where the dark cover seems to have rubbed off. The other is a sporadic system hang when using the thunderbolt port. So two questions. Do you think the space bar is considered a defect repairable under Apple Care? The other question is, I have a second drive in the system, replacing the DVD. Not sure if the Apple Care agreement cares about that or not, but to get the thunderbolt issue evaluated I have been told I have to replace the DVD drive. Is that correct?