Loosecannon:
the topic covered on the Declic no solve the problem because is diferent the syntom, I tried before I find the solution in the site I mentioned.
This is a site french but you can choice the english language clicking the british flag.
You are right it is a executable file, but it is really zip file and you can choice the route for unzziped, doing this you can see that the solution is change the next 2 archives:
OpenGL.dll and Portable.dll in the folder "engines" of your Hfx6, because the originals are wrong or have something bad an get the error of lecture of the transitions having tga format or mpeg.
I´ll try only to help whom that need the solution in the same way I needed it.