Re Freezing issue and GPS not locking on issue,
Foxoffer contacted me and told me to install firmware V2.2G (which is apparently more up to date than V2.5G ummm!), format the memory card in the GT680W to sort problem.
Did as asked, unit recorded 6m 23s and froze, gps did not lock on, this is rapidly seeming like a big waste of money, at the moment I would definitely not recommend this unit to anyone, wait for Jokiins unit to become available - I believe quality control will be much better.
So The camera itself its very good but not the GPS?