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Cruise Not Avialable after upgrade to Firmware 7.0

Was out of town the last few days and just had the chance to update to V7.0 (85D delivered Jan 2015). After the upgrade, I'm getting a "cruise not available" message and, while I can see the white lines indicating lane markers, they never turn blue and I never see an image of a car in front of me. Thinking that, somehow, my front radar unit is not working but don't know if it's software or hardware? A call to Tesla said there was some error and someone "would get back to me in a few days" but no more info. Has anyone else run into this?

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