When I check my sensors, 0-7 lid closed, rollers compressed, I get Board Sensor: 0, I've been reading E 303 error message but my machine, model b, only has 2.5 hours on it. I run one job and everything is great then I try another job and I get a E 303 message. This is very frustrating to me as I haven't been able to do any finish product over the past few days. I surley can't be my cable with this few hours on it. The software is all up to date so now what can I do????