Currently Being ModeratedApr 26, 2013 1:46 AM (in response to bob.logan64)
How did you "transfer" Express?
It might be better to re-install Express 9 from scratch, though without an Optical drive you would need to:
a) Use an external Optical drive
b) Make a disk image of the installer on another computer and then copy that image to the rMBP
c) Make use of Apple's Remote Disk