I seem to have hit a key or keys that have disabled my keyboard in the 737 add-on, I tried it in all the other a/c and it works fine. I must have hit a key ( s ) that have disabled it, can someone please help me out! Thanks! Ken

Maybe your FMC display is in KYBD mode, if so then all keys are redirected to it. It will show a KBD (or similar) in the lower right hand corner of the display. It is toggled on/off with a mouse click over the narrow vertical black strip to the right of the number of the FMC display. Hope this helps.

Does this happen when you restart FS? If so I would reset FS to default key mapping and default mapping in the PMDG menu. Or you can rename your FS.CFG file and let FS create a new one.