Basically title, my keyboard's number keys dont work, the ones above the QWERTY row, and a driver reinstall from device manager did not work. My keyboard is a cheap A4Tech Keyboard. The End and PgUp/PgDown Keys also dont work. The 5 and 6 keys do work, however. If it helps, I've tried System Restore, also did not work. It started happening after a sudden blackout last night, and has not worked since.