media player 9 don't play any sound

I put another sound device (1) in my onboard
CPU (2), unninstalling the onboard chip. That's fine,
my computer is playing any sound, in any software
except by WMP 9, this soft don't play any sound.
Why that happens? With the CD the s.device theres
some options installed, also directx 8.0 and some
files for media player.
Win98SE, Explorer 6.0, with flashes, realmedia,
any mp3, wav, mid files working and doing
great sounds, from others softwares. I try remove
and reinstall WMP 9, but nothig happens...
Well, if someone read this, thanks.

(1) Audio 5.1 Channel PCI Accel. Card - Genius
(2) AMD 1.2 Gh - 256 Mb RAM

I have the exact same problem, did you get any help?
Sabrina
-----Original Message-----
I put another sound device (1) in my onboard
CPU (2), unninstalling the onboard chip. That's fine,
my computer is playing any sound, in any software
except by WMP 9, this soft don't play any sound.
Why that happens? With the CD the s.device theres
some options installed, also directx 8.0 and some
files for media player.
Win98SE, Explorer 6.0, with flashes, realmedia,
any mp3, wav, mid files working and doing
great sounds, from others softwares. I try remove
and reinstall WMP 9, but nothig happens...
Well, if someone read this, thanks.

(1) Audio 5.1 Channel PCI Accel. Card - Genius
(2) AMD 1.2 Gh - 256 Mb RAM

.

I found one solution for the problem, but it only works in a session of win98se, when I shut down the system, I have the f... blue screen with error message, the next time I run the system the same things I have to do again.