my problem is like this..when I connect to multiplayer ZONE,Roger Wilco+VATSIM),the framerates drops DRAMATICLY,from 25-30 in medium display settings to 12-13 when connected to mulitplayer.

HOWEVER,when I swich the sound off the framerate goes back again to normal.
I tried sound addons like GPSW,cabin crew announcemets,air condition sound,and the framerate still is good.
The oroblem only happeds in multiplayer and with the default FS2004 sound.
NOTE..I have all the latest drivers for my computer
Win XP,Gforce4,512RAM,2.4G processor.
Thanks in Advance
Gabriel Weissman.