with me the cleaning has helped ... not long

I first also considered a new remote control (is only 3 years old) to buy, because the phonetic / Quiet button and the Program key no longer worked. Did it but read by cleaning the board. It's really not just use the remote control to kill (without breaking div plastic parts.) - But it was exactly as described - under these two keys was a liquid (no idea where the came from - from the keys themselves perhaps). This wiped away with paper towel - FB assembled - lo and behold - the thing works like new.
Therefore, one should event in front of new purchase. but the cleaning attempt.

Update - 08 2014

Unfortunately, the same problem occurred again after a short time - have then decided on a new purchase - hope that this new remote works longer.