1) Did you wipe clean both /home/user/.d1x-rebirth/ AND /opt/d1x-rebirth/ before installing the package in extras-devel? If the dirs don't exist to begin with and it's your first time installing D1X than it's fine.

3) Are they full retail (not shareware) Descent data files patched to at least ver 1.4a (last ver is 1.5 IINM)? I've done this because DXX and D2X-XL for my old Ubuntu needs this as well.

I think these may be the probs, its full version, but unsure what version..

thanks.