Witilt menu changes

Hey all,

has anyone else had any experience with the Witilt v3.3 changing its menu settings spontaneously?

Every now and then something like this happens:

[5] Display Mode (Binary)

turns to

[5] Display Mode ()

for what appears to be no reason. It can happen to other settings as well. Im wondering if anyone else has experienced this problem and resolved it?

I have more than one Witilt so I dont believe this is a hardware fault with a single device.