My Laptop Is typing numbers instead of letters in GAMES, all of the games in the world! how can i fix this?

my laptop is a Lenovo z560, with windows 7, it types in numbers when you want to change the controllers in any game. it doesn't matter. PLEASE HELP ME, I Beg you! its only in games!My Laptop Is typing numbers instead of letters in GAMES, all of the games in the world! how can i fix this?
what kind of games (java, flash, preinstalled games?) more details = better answers without knowing that i can't help you to much if you find its only flash based games (most likely) then uninstall and reinstall flash if that doesn't work backup your files (as you should already be doing) and use system restore to restore your system to a time when it worked fine