Yeah, it happens a lot. Even if I try to hold the knob steady while pushing it (which is something that I certainly could not do while driving), I cannot get it to work properly.

I'll try upgrading the software when I get back from my in-laws :sigh: and see if that solves the problem, but I think that it's going to end up being a hardware issue.

I've already trained myself to not use the knob for anything except volume control. (Actually, I never trained myself to use it at all -- it's never worked. )

Anyway, thanks for replying here early on Christmas Day.