Thanks for the info on unlocking maps Nucleon,

I have a Edge 705 and recently bought an Edge 800. I only use a MAC for installing maps onto my GPS units. I tried loading the AUS maps from MapSource into the 800 and got the 'Cannot Unlock Maps' message. I did a fair bit of research on how to unlock the maps for the Edge 800 but cannot find anything for the MAC platform. It there a key generator for maps created from MapSource on a MAC?

I'm a novice to this and would appreciate some help. I did not understand your option 3 work-around, it seemed that you still need to use some software on a PC in order to get this to work.