A couple months ago, a couple inconsequential keys on my keyboard randomly crapped out - a couple of the arrow keys and the dim display. I started using an external when i was home with it to avoid wearing anything else out. Last night while i was using the laptop keyboard the i k , 8 0 ..maybe a couple more keys all stopped working.. And dim display started working again, if that's relevant. Turned the computer off, and now the power button doesnt turn it on. Am i screwed?