Yup, Mr Drillux does take some time, but it does work
Yes, I did install Wizznic myself, I might try again another time then.
TailTale already had the problem with dmenu, so it's not a gmenu2x problem as joyrider pointed out.
I haven't kept Wolf3D because it only works with shareware versions of the data files, and I've gone through those levels enough already.
*EDIT* Wizznic did work this time around, no idea what I did differently.