Sound bug?

[jackslostsoul]

So I have been getting a sound bug randomly on all maps , ill be sitting there not doing anything or shooting, nothing seams to trigger it off hand or i havent picked up on it yet. But what happens is it cycles through all the game sounds. guns firing trucks driving backing up explosions smoke sounds basically every sound in the game, any suggestions to get rid of this?

SYSTEM:: XP Media Center AMD Athlon 64 FX-60 Dual Core 2.61GHz 4gb ram SB X-Fi Audio [DC00] NVIDIA GeForce 7800 GTX KO x2 SLI