My pops and i used to play the pyromania 1.5 mod. but afer a few weeks of using it, our computers would start to slow down and descent wouldnt run anymore. reinstalling would fix this, but the cycle would return. anybody know why this would happen?
Give us a D4 beta

I've heard of that problem before, but I don't recall what the solution was.

I'd suggest posting the problem over at the DescentBB.net in the Support section. There are people there who can probably help.

I've never expirienced this before, what are your system specs? (this always helps )

Pyromania1.5 was written for the 1.5 patch...which was never officially sanctioned. I can assume that if you are running it under 1.4 that it might cause problems?

http://RipTeam.com
http://FreelancerCommunity.net
http://UnderVerse.us

Nah, should be fine. PM comes w/ it's own main.exe, that one is based on the 1.5 patch. It doesn't interfer w/ the regular 1.4 install (at least not on my machine )