Since all the downloaded data files were so big and bloating my C partition size, and since I had the backup of my SD card IMG file, I moved the TOPO and IbycusUSA files off my C partition to My Documents for future use, if required.
Now my Mapsource won't launch. I get an error with my IbycusU2 installation and it asks me to reinstall it.
I think I understand that IbycusUSA2 is different from the TOPO maps, which are installer EXE files vs. just EXE files. But since I've already downloaded everything, loaded it all on my GPS unit and backed up my SD card image I really don't want the large installer files on my C partition any more.
How can I get my Mapsource to launch again without reinstalling it and possibly losing my database elements, like tracks and waypoints, etc?