Is it the sound card?

Hi, any help here would be much appreciated. I'm running fs2002 with the frames locked at 30.All the default aircraft and some others--T38 & Sky Crane run fine at 26/30fps in cockpit & spot view. However, I mainly use the Posky & Meljet 747-400 with the PSS PW sound set. When I go to spot view with one of these planes, the fps drops to 2/5 and the sound is very distorted. My sound card is the Creative SB live 1024 with the latest drivers. No point in thinking about fs2004 till I get this sorted. Any ideas?. Incidently, on my recent trip on Air India's "Velha Goa" I noticed that the pilot was deploying just the inner spoilers on the decent into JFK. Any way of doing this in fs2002? I was also more than pleased that the return flight was on "Agra" which Rick Sharma has just superbly painted for fs.Regards,Russell.AMD XP2400+512mb ddr ramWin XP proSoltek SL-75DRV5GF4 Ti4600 128mb44-03 drivers.