I had the exact same problem, posted in this forum a couple times, never got any response. I too hope to upgrade soon, always have to resort to turning of music, usually listen to the radio. But I agree completely,it really bugs me. I want to be able to hear some of the music/SFX. I paid just as much for the game as anyone else did, so why can't I have it?
Really stinks, asked @ tech support if it was a resource leak or something a long long time ago. The repeating SFX just eats up the system resources until the game just runs slower and slower until it finally crashes to the desktop and thats for Civ III till I reboot again.
Quite annoying
Windows XP and Windows 98
AMD 650 K7M