Have you copied sound files from your FS2000 folder? I've had a similar problem once, when i first installed the CFS version, but forgot to copy these files. After a little drag-n-drop procedure, all was OK.
The turbofan starts, and you hear it, but then all L-39 sounds dissapear, if it's your problem - then go copy these sound files to their new location.
[ 24-12-2001: Сообщение отредактировано: LiSiCin ]</p>