My TH-D72 was working fine as I was traveling on the Pacific Surfliner yesterday. The GPS stopped updating its postion somewhere near Santa Maria. It beaconed that position (which shows up on aprs.fi/ke6zc) when I was near Carpinteria. I switched the radio off and back on again and that cleared the location, but now I get an "iGPS ERROR" message. I upgraded the firmware to 1.02 (it was 1.00), which requires a full reset, hoping that would clear up the problem. It didn't. I suppose I'll have to take it to the service center in Industry to get it repaired unless someone suggests something else I could do to get it working again.