I will ask u the same question everybody will ask, Why the heck did u buy a PhysX card? 8O
There is no way for the blaster and the physX card to co-exist, one of them has to go (unless u get watercooling for both GTX's)
Unless PhysX are more important than sound (please don't say it is) I would say return the PhysX card, and rely on the two GTX's for the physics calculation. they will even be better when M$ releases directphysics for Vista.
Thermaltake Kandalf LCS case
Asus Striker Extreme MoBo
Intel 6800 Extreme CPU
2 Asus 8800 GTX Vid cards
Sound Blaster Fatality sound card
Thermaltake Toughpower 850 Power Supply
2 gig corsair pc8888 mem
2 WD 160gig sata 3.0
2 WD 500gig sata 3.0
Plextor slot load dual layer dvd burner
19in Samsung LCD
Plus alot of other odds and ends.