Problem with MX300

[Fred]

I recently purchased the Monster Sound MX300 and have installed it into my computer. The problem I have is whenever I try to play any A3D supported game (i.e. Unreal, Recoil, Half-Life), I receive a repetitive droning coming from the game (it's the best that I can describe it). I can still hear some of the sounds from the game but they are drowned
out by the pulsing drone. Everything else runs smoothly( graphics, other sounds, etc.) I have tried reinstalling, downloading the beta drivers, and none of them seems to fix the problem. Please help! (non-A3D sounds works fine)

Gateway G6
Pentium II processor 400
Diamond Monster 3D II Accelerator
Creative Sound Blaster AudioPCI 64V (disabled)
Monster Sound II MX300
3D Rage Pro

[Bleeding Edge]

This is a matter of updating the games with their latest patches. You can find them at their respective web sites or here www.avault.com/pcrl/index.asp?with=letters (http://www.avault.com/pcrl/index.asp?with=letters) just click on List Patches Alphabetical