Sound locking up

[Chris Bendzel]

Hi
I have recently installed FreeBSD 5.1 on a Compaq with onboard sound.
WinXP identifies the
card as an "ESS Allegro PCI". Compiling the kernel with the "pcm" option
did not load the
driver or show up in the "dmesg" output. I chose the load all sound
drivers in the
/boot/loader.conf file. It loaded the "maestro3" driver. This is the
output of my "dmesg"
file:

CHRIS >}> dmesg | grep snd
Preloaded elf module "/boot/kernel/snd_maestro3.ko" at 0xc04470cc.
CHRIS >}> dmesg | grep pcm
pcm0: <ESS Technology Allegro-1> port 0x1000-0x10ff irq 5 at device 5.0 on
pci1
pcm0: failed to enable memory mapping!
pcm0: <ESS Technology ES1988 AC97 Codec>

pcm0 at pci1:5:0:  class=0x040100 card=0xb19d0e11 chip=0x1988125d rev=0x12 
hdr=0x00
     vendor   = 'ESS Technology'
     device   = 'ES1989 Allegro-1 Audiodrive'
     class    = multimedia
     subclass = audio


The problem I am having is that after about 30 seconds, the sound card
hangs on one note
and the only way to stop it is to load another sound application. If
anyone has had this
problem before, Please Help. Thank you for your time in this matter.