Certain Effects & Sound files just stop working?!

[Mast 0]

This just started about a week ago but all of a sudden, certain effects & sound files just don't work. They used to work. I was flying the F-15E Strike Eagle (2004) and now the engine sounds doesn't work and the afterburner effect is gone too. I looked at the data ini files and everything looks correct. I looked at the effects and sound folder and they too have everything there. It's driving me up a wall. Has this happened to anybody else? This is in Strike Fighters 2: Europe and I have the NATO 4+ mod and KillerBees' weapons installed too. Now just today, the Mig-29 engine sound just stopped working. Good lord... guess it's time to do an uninstall of everything.

 

Mast

[Mast 0]

I finally just uninstalled everything and did a clean install again. Figured it was the best way to go.