I have a Fentek KBMCK142 programmable keyboard at work, and one of the keys is failing.

The minus (or hyphen) key on the numeric keypad works intermittantly. When entering a column of numbers into a spreadsheet, sometimes negative numbers get entered as positive. This is a less than desirable result.

The keyboard was expensive, ~$160, and is no longer available. I have located a replacement (different model but workable) for $200, but it is back ordered and I have to have it within the next 5 days.

Is there any magic bullet that can make that minus key work more reliably?

tanstaafl.