Thanks for the advice all! I do have a soundblaster Audigy sound card within my system. I am going to update my drivers, defrag, and do some tweaking to see if I can resolve the issue. Also, I am a little unsure on how to determine wether or not the integrated audio has been disabled and my sound card is the primary source of audio. Anyway, the sound pack is awesome! I do love the sounds especially since I am a spit pilot. Love to hear the Merlin! Thanks for all your help.
Oh, thought I would add that after sitting a while in frustration after yesterdays events, I decided to log back in. This time I flew for a while and nothing happened. Then I got in a C-47 to deliver airfield supplies and after the sortie ended (back at the tower) it happened again. Damn the luck.