2007 BMW 550i Radio/Nav/Satellite Idrive system not working

The system completely reset itself a few times while driving.
Now, I get nothing at all. It doesn't turn on at all.
Suggestions?

I have an '06 E61. Several months before the warranty expired, the iDrive started acting the way you're describing it. I took it in and they reloaded the software. That fixed it briefly. Eventually it died about one month before the warranty expired. They replaced the whole unit. I think you're toast. I hope you're still within warranty because I'm sure it ain't cheap otherwise.

I just got clarification that it is the CCC unit "Car Communication Center" that failed and at $1200 to replace...Toast..xtra burnt is how I feel!