just to pass on some more information. Did a short test this afternoon and I have a 33760 with pcb board version 8 and I have had none of the reported issues with the vehicle icon skipping or being jittery.

PCB Description V8 4gb 035 DA TC GM
My software is at 6.50 version
GPS firmware is 3.04.03

have to check though my accuracy seems to be a little off as just a few others have reported.