I had that happen to me just recently as well. last night i installed a bunch of apps and one of them was the chromium browser for the n900. I ended up uninstalling all the apps i downloaded one at a time to see which one messed up my keys, and after uninstalling the chromium browser it fixed my keyboard so i can type like normal. Wait nvm it didnt work, it worked for like a few seconds and now i cant get it working again ugh someone got any solutions for this problem?