I'll probably have v1.41a out either tonight or tomorrow, working on updating the User Guide right now so that it reflects the changes that have been made to the interface and overall program behavior. If all goes well (I don't stumble across a terrible bug that takes a week to fix) then you'll be able to test DXF files yourself this weekend instead :)
If you do come across any that do not load properly send them this way and I'll get things smoothed out for v1.42a. Thanks!