mmmikeAll the keys work fine on mine. Which keys aren't working for you? Have you tried pulling the cap, then the switch out and re-inserting it into the socket and trying again? Is it a whole row of keys, or a whole column?
chucktdriscollSeveral keys: F4, F5, Backspace, 5, G, B, and a few more. I didn't know the switches can be pulled out and reinserted. I'll try that when I get home. Thanks
mmmikeSounds like a whole column is bad, which would indicate a defect on the PCA (bad solder joint, damaged copper trace, etc.). I'd file a support ticket (try the switch re-insert first, but I doubt it'll work).