Random question, has anyone noticed that their X5's navigation system's screen seems to be dimmer when it is first turned on sometimes? I've noticed this on occasion (it seems to be in colder weather, but I am in LA so it's never THAT cold). Is this a common issue or is the screen something I should be having the dealer replace?

I'm sure it's an expensive part so they won't want to replace it, so I figured I'd check to see if this was normal.

Who knows? Maybe this is just normal and I am going blind (or it is brighter outside)!