temp does not display sometimes

[gcb]

sometimes, the temperature next to the compass will just display "--"

if i turn on the car (with the temp showing or not) there's a 1 change in 3 that the temp will not show.

if it shows (or not), it will stay that way until I turn the car off and on again.

it does not matter what i do with the car on. it will never show/disappear. only when the car is turned on the state is choosen. i can can cycle the display functions all i like, reset whatever, it will never change the current state of showing/not showing.

it's not the same as happens here: ambient temp sensor?

anyone ever had something similar?

i *think* it started at the same time i paid the dealership to replace my dimmer switch on the left stalker by the steering wheel. but i can't really remember if it used to happen before or not... it's like that for some months.

(i didn't even remember about that for some time since i drive with the MPG displaying all the time now... damn gas prices)