I haave loaded, and caan use the 'My Trails' as in the post you suggested, then - loaded and used. the 'southwest USA topo'. This seems to be more off an issue with the 'Utah Topo 2011' file. The 2 first files asked for administrator rights to modify before installing, the Utah topo did not, and doesn't show in the program list in windows, it only shows as a file in the folder. I'm beginning to think it is a file issue, but the other files that use the same installer also go 'missing'. I do not think this is the 32 vs 64 bit issue.