Whenever I try to run Redguard, the PC hangs. It may be an endless loop or whatever, but all I can do is to switch the PC off. I can't ALT-TAB or ALT-Enter, can't open the task manager, nothing.
Same thing happens when I use "Launch Config".

Redguard.exe takes me to a menu, but when I click "Play Game", it tells me that there is no play cd in my CD drive (which is correct).

And when I run the rgfx.exe through ym normal DOSBOX installation, it tells me that a DLL is missing (probably Glide-related).

EDIT:
Now this is odd: I started setsound directly, turned sound off complete, and then the game started without a problem (and at a decent enough performance).
To play without sound is better than nothing, I guess, but I would still appreciate it, if I could resolve the base problem, too.