Hi, nice to meet you all. I came here since I got a problem with my z12 keyboard. I have 1 year with this keyboard and it works pretty good. Since yesterday the alt key is acting like if its pressed all the time. Even I can see it pressed with the digital keyboard of windows. I already did a clean in my keyboard and also, I formated my PC with a new fresh install. Problem still persist. I hope someone can help me to figure out the problem.