JasonPetty,
Have you swapped phones around to make sure it isn't a hardware issue?
Have you done the stare and compare of a known working phone that is identical to the phone having issues; particularly the Flags, Keymaps, and Programmable Keys? You could do a Copy/Paste if you are comfortable with programming the system.
Have you tried the Default Station FC: 394? This will reset the phone to Mitel Default Standards.
Thanks,
TE