I'm probably not the heaviest of emailers thus I don't think I'm even close to over-using they keyboard. However, I've begun to notice that it's becoming increasingly difficult to use certain keys. Specifically in my case it is the letter "K" on the thumbboard. I find that often the key doesn't work and sometimes only works if I press long and hard. At first I thought it might be due to some software conflict, but I disabled all the usual suspects like KeyCaps600, TB, etc but to no avail I'm still having this problem. It is quite annoying to have a single defective button in the middle of the keyboard and I was wondering if anyone else is having a similar problem? I'm particularly interested in the letter "K" button b/c I know it is involved in the battery disconnect seqence (soft reset + "K" + backspace). I wonder if that has anything to do with it?