I have downloaded some single img file maps that work very nicely on my Oregon 450 but behave in several different ways in BaseCamp. Some will show a RED line while reading then disappear from the list. Some will be available from the device but if I copy that same img file to the computer (tried several different folders / drives) it is not found by BC. Some will be loaded by BC but have reduced functionality (ex: printing disabled). I have looked at the manual and none of these issues are addressed. I have read posts in various forums and have tried different software solutions such as JaVaWa with sporadic results.
Any thoughts?