Is this problem on a Laptop?
If so many lappys have multifunction keys. My PrtSc key is also a SysRq key if I press Fn+PrtSc keys together.
Maybe you need to press the Fn + PrtSc key to return to original function (or likewise key on your lappy) edit: or Ctrl+PrtSc keys together to return to original function..
If it's a desktop computer try re-boot. Also I notice some USB keyboards go "odd" but work better when plugged into PS2 with adaptors.
|