Garage Door Remotes Stopped Working?

I have a Craftsman remote control garage door opener. The are 4 remotes (one for each car + the keypad remote fastened to the outside of garage frame). All four stopped working on the same day.

I replaced the batteries and when I try to program my remote controls the circuit board does not accept any of the remotes. I installed two new boards, both with the same results. The direct wired push button inside the garage always works, but none of the remotes do. Can someone "zap" the remotes like a neighbor with a grudge to cancel them out? I have not replaced the remotes, but I think that should be my next step. It's kind of weird that all four remotes stop working on the same day and the new control boards offer no help.

By Troy