I've gotten a grey screen that freezes my mbp 4x in a row now. Everytime i start to use Photoshop, or have a lot of Safari tabs open, The grey screen takes over my computer and prompts me to shutdown and restart. This is obviously really annoying, and I lose all my work. Is this a hardware issue, or an easy fix. Help please. Thanks ps. I just bought the notebook a week ago, and all updates are in order.