I have a few questions about my rMBP that hopefully you guys will be able to help me with. It is the base model 15" that first came out last year. 1) The main problem is slow transfer speeds. I transfer movies between my desktop and my Macbook via USB thumb drive. On one of my recent transfers, it took 19 minutes to put 4.3 GB from my Macbook onto the USB. This has happened on many occasions and on my desktop (which doesn't even have a SSD and is quite old), it transfers much quicker. 2) When I plug headphones into my MacBook, the left side of the headphone isn't as loud as the right side. I tried this with different pairs of headphones so I can confirm it is not headphone problems but rather problems with the MacBook itself. I know some soundtracks differentiate which sounds come from which sides of the headphone but that's not the case either. I don't mind the problem too much but if it can be fixed, I might as well go ahead to preserve my sanity. Not really a question, but here goes: 3) I love reinstalling fresh OS on my desktop since it keeps everything tidy and more "secure" by keeping things isolated. Would it be a good idea to routinely do the same on my Macbook? I won't do a complete reinstall since I don't want to reinstall ML (I'm more well-versed on Windows computers) but I'll just delete any changes made since the original setup. I'll have to Google how to do this.