I've downloaded the 2.0.5.1 binary (rtext_2.0.5.1_osx_bin.dmg) from sourceforge a couple of times now, and this consistently happens...
when opening the disk image, I get this...

Nevertheless, if I drag the app out of the image and onto my desktop and try to run it, I get this...

Seems to be broken to me. I'm running up-to-date OSX 10.8.2 on a mid-2011 Mac Mini with 8GB RAM.
Cheers
