Hi Carbide, WOW. that is so "untypical" of a Milltronics. I have to wonder if there is an under lying problem, bad / loose connector for the key boards or ??? ask on the site, this is unheard of.
give me a call, 952-288-6340, 8am to 8pm Monday thru Sat. we will get to the bottom of it.
sportybob