[Hai-users] Haunted keypads?

[jmat]

Has anyone else experienced keypad failure where the keypad acts like
someone is hitting buttons (and no one is)?

I had one keypad flake out a few weeks ago, and I disconnected it, fully
intending to RMA it to HAI -- of course, I finally boxed it up two weeks ago
and was about to ship it just as Katrina made landfall.

I thought this was just a fluke.

Except today, I have another keypad doing the same thing -- although it's
different keys this time (the first one acted like someone was hitting '5'
repeatedly -- this one acts like someone is hitting '1' repeatedly).

Has anyone else seen this happen?  Is it possible that there is something
wiring related (or panel related) that's causing this?