While riding my motorcycle yesterday, I got the notice to update my map. So, after plugging up the Zumo 550 to the PC and using Express to recognize it (new PC), the update tells me it's too big -- and I have to pick from a list of available partial maps. And what does it show me???? Just one map -- for Canada and bordering states. Useless to me. Installed in the Lower 49. How do I get around this blockade? I'll attach a screenshot...