I have a Nuvi 550 so I don't have great track file options.
I have made several transparent maps of my track files and they work perfect overlay-ed on CN2010.
My issues are they dont show up as overlays on the SE Topo's that I have downloaded from here. ???
Its there a way to set priority of which map overlays the others, the SE Topo seems to have top priority.
If you are making your own trail maps and using Mapset toolkit try adjusting the Draw Priority. It worked for me after some one else gave me the idea. I used 1 in place of default.
I am using Mapset Toolkit and saw that draw priority setting and was wondering if that would do it.
I also see that I can edit installed mapsets and both the draw priority and transparent options can be changed.
Did you do it via edit or re-installed using the draw priority set at 1?
Rather than mess around with it I just uninstalled the prior version I had made, then used a copy of my original .img file with the draw set at 1 and installed a new map.