MapSource 6.15 is still very slow for me, and I've tried every method I've come across to get an older and new MapSource to co-exist on the same PC.
I can install a map product (Australia City Navigator 2008) that has an older version of MapSource, then a map that comes with 6.15 (Europe City Navigator v10), but if I try to replace the 6.15 exe with an older one, I get the old interface, but the program refuses to recognize the CN Europe map - there's just no dropdown box for it at all. I can get CN Europe, versions 9 and 10 to show up just fine in the 6.15 MapSource, but not the older one. Even if I only install CN10, then grab MapSource 6.11 from the Garmin site, and install - I'm told that there are no Garmin products installed on my machine!
This is a huge headache, I've moved from an older pc where both versions worked just fine, but it was very slow at redrawing. I pretty much bought a new pc just so that map scrolling would be faster, but I'm forced to use the slower version of MapSource if I want to use CN Europe 10, or any other new map. Any ideas on what I can do?