Although it doesn't seem to involve the dimmer setting because the same thing happens out of the car, I'll mess with it a little bit and see what I can come up with.

Edit: 10min later I've realized that each info mode is slightly brighter or dimmer than the other modes, although it is very hard to notice. The biggest disparity is going from "Info: Track" to "Info: Seek Tool". "Info: Track" is the dimmest of the bunch and "Info: Seek Tool" is the brightest. And I'm talking about the whole screen, and it is not flickering. Also, every time I page through the different modes they are at the same brightness as there were before. The brightness does not vary. This taking place in home.