MIDI Problems

Allright, I had my computer in the shop for about to months, and I just recently got it back, and the first thing I did when I got it was went and downloaded rm2k3, and the rm2k rtp all from asite.com I think the site was, and well that is ware I downloaded it before, and I had no problems in the past, and well now, when I play downloaded game I never hear the background music, I only hear sound effects, like doors opening, and I also cant hear background music when I'm making my game. So if anyone knows what the problem is, it would really help, alto. Also, I'm not sure if this would have anything to do with it, but before I was running Windows ME, now I have to have Windows 98. Well thanks for any and all help. Also, I tried getting a new Synthesizer, but it didn't do anything at all.