1.. Please read just above the text editor:
Tip: If you are asking for help to troubleshoot a computer-related problem, please be sure to include all the necessary information (ie: operating system, model number, hardware, software, etc) that will help others identify your problem for a speedy resolution.
2. It's the usual keyboard enhancer. But with what information you provided, all I can agree with is it may be in need or uninstall and reinstall.
Here's another problem with my computer: when I turn it on, it get an error saying something about my on-screen display file being corrupted. That made a little sense to me becuase I didn't see "Mute On" when I hit mute, nor did I see the volume bars whenever I increase volume. Please help me!!!!