SB16 goes all screwy

I'm having enormous problems getting the SB16 card to work (Non PNP). I set up the default settings but always get the following message with sound playing for 1/4 second on 10 seconds off. Even in windows, I am forced to set the high DMA to the low DMA setting but at least 16-bit works there - except for 44100Hz.

Sound: DMA (output) timed out - IRQ/DRQ config error?

All I have is a standard video card and IO card installed. That's all. I cannot see what could be conflicting! Sometimes it will just start playing fine for about 15 minutes and then goes screwy and nothing will fix it except a reboot. I've scoured the net for days but have no idea. I'm starting to think I am dumb! ;(

I've tried every IRQ, DMA, IO combination, looked at the cards to confirm everything and who knows what else.

Any ideas?

Currently /etc/conf.modules is as follows:

alias sound sb
alias midi opl3

options -k sb io=0x220 irq=5 dma=1,5 type=0
options -k sbpcd sbpcd=0x220, Soundblaster
options -k opl3 io=0x388
options -k uart401 io=0x330 irq=5

Here is /proc/interupts:

 0:    1792597   timer
 1:      42492   keyboard
 2:          0   cascade

3: 4760734 + serial
4: 195113 + serial
13: 1 math error
14: 490249 + ide0

Here is /proc/DMA:

4: cascade

Here is lsmod:

Module Pages Used by

ppp                5            1 (autoclean)
slhc               2    [ppp]   1 (autoclean)
uart401            2            0
sound             17    [uart401]       0 (autoclean)
autofs             3            1 (autoclean)
nfs               13            5 (autoclean)
vfat               4            1 (autoclean)
fat                6    [vfat]  1 (autoclean)