risen3d not working

Just trying risen3d on a system. I had it installed on there before, but I was getting it freezing at the "wait" message (after it loads models). Uninstalled and reinstalled, all iwads say "the doom2.wad contains no levels" even though I've pointed the launcher to the iwad paths, when opening a wad from the "installed games" menu, it appears to load, but then hangs at "wait". The same is happening even if I uninstall and reinstall to a completely different directory.

I've never heard of this problem before. Have you read all the documentation regarding installation ? Is there a file called Risen3D.out in your Risen3D install folder ? This file may give you a clue.