I have a problem of the keys occasionally "sticking" while I type an e-mail or text message. By "sticking", I mean that upon the completion on a word (for example: motorcycle), the "e" key will get stuck and keep on typing the letter so that my word will become "motorcycleeeeeeeeeeeeee" until I am quick enough to hit another key to stop it. This happens occasionally, but it annoying nonetheless. My S620 is unlocked and a few months old. I have never dropped it nor has anything ever been spilled on it. I am wondering if this is a software issue and if anybody else has encountered this problem before and would know how to remedy it.