I'm using this one.
What spec PC are you running it on? I have an Athlon XP2400+, 512MB and a Geforce 3.
I'm using a p3 800, SBLive Value, 512meg, Geforce 2 MX.
The framerate is fine, it just that sometimes, the thing will freeze up, like it's loading, only, its not loading.
The win32 port is for people who want sound, as DOS soundblaster emulation is only available through a wrapper like VDMsound, which is complete crap.