I've been experiencing control faults with my T2.  At first, it was just when turning it on the unit the first time, I'd have to reset it and it would be fine.  Now about 1/3 of the time when I get to the end of a row, the unit disengages, and says there is a control fault.  I reset the unit, wait for the satellites to re-converge, and go along fine until it does it again.  It is getting frustrating though, because it is getting worse and worse.  I am using the cigarette lighter plug on the EZ500.  Any suggestions on what the problem may be?

Thanks!