Gadget Guy, there is a company out of Granbury, Texas (SW of Fort Worth) called Sea Level Gauges that advertizes that they have a real accurate tank monitoring system Model 709RP that interfaces into the Aladdin System. I have considered switching to these guys with my system.
Give them a call and see what point it hooks into the Aladdin system. I would be very interested in anything you find out.
SeeLeveL Gauges by Garnet Instruments Ltd. - Model 709RP
Have you tried to power down the whole Aladdin system and power it back up? I also have an Aladdin reset switch above the driver.