I just got a new PB 12 last week as my primary computer, and I am having a great time. I just noticed, however, that the F8 key seems to be a little raised up on its left side (next to F7). It may be my paranoia (I did just move from a Toshiba whose hard drive failed a few weeks back), but the surrounding key (F7, 7, 8) also seem a bit raised up where they come close to the left side of F8. It's almost like there's a little bump under there. Any ideas? Should I worry?