A friend has asked me to make a map for his wargames campaign. I normally use CC3+ and he is not a user of Campaign Cartographer at all. I have advised him to obtain a copy of the CC3 viewer so he can see the map I am working on at various stages. Unfortunately, my CC3+ map does not seem to load into the viewer. Is there a viewer for CC3+ or is there some way I can convert my CC3+ map to be compatible? I am using bitmap tiles as fills for various areas on the map. and these just show up as red crosses when I put the map into CC3 (as opposed to CC3+). If I try to "Find" the CC3+ bitmaps to place them into CC3, the programme crashes.

I know I can render the map as a graphics file and send him that but I never find the resolution to be as good - the definition on magnification/zoom-in deteriorates. What's my best approach?