Weird. Looks like gibberish. I don't think that's hardware issues though which is good news on your wallet.
If you haven't already done so, try doing a shut down, wait a minute or two, then turn your computer back on.
You can also try resetting the PRAM. To reset PRAM, turn the computer off then turn it back on while holding cmd-option-P-R. Keep holding them down until you hear your computer start up again a second time.
OS X Mountain Lion: Reset your computer
Wish I could help more! I'm sure one of the resident experts will chime in here with some more advice though