NAV Screen Goes Black

[mikey777]

I have a 2008 X5 3.0si and the iDrive screen sporadically goes black. At first, I thought the whole unit died but it would suddenly come back to life. Then once it was black I noticed that the whole unit was still active; the screen was just dimmed to almost black. I can see it faintly if I turn on the cabin light.

I took into the dealer and they ran checks on it but found no fault codes. They checked all the connections and everything seemed fine.

Has anyone else experienced this with their nav screen?