SB IRQ changes at boot

My soundblaster keeps changing the IRQ setting when I boot.
Normally it's at IRQ 5, DMA 1,5 ,IO/220 but when I boot
it sometimes comes up with the yellow (!) in device mgr and
says it can't automatically set it, when I hit the manual
button, it sometimes sets it at IRQ5 sometimes at IRQ7
I've tried to remove, reinstall and still does it. I've tried a new SB32 AWE32, same problem.
System: P100, Mr.Bios, motherboard:AP5/C intel 82437FX chipset, STB lightspeed 128 PCI video, STB TVPCI tv tuner,
SB16 PnP soundcard, Iomega internal SCSI zip drive,
32meg EDO ram, 256k L2 cache,Cardinal Ext 33.6 modem on com2, Logitech serial mouse on com1, Buss mastering enabled,
4X IDE cdrom on the ide port of the sound card (secondary
port has (!) do to the SCSI card running on that IRQ.

It's weird, this just started to act up about a month ago,
it's not that big a deal, but I just don't understand why.
When I run checkit 4.2 for windows, it shows a conflict
between my SB16 and the LPT1 port? the LPT1 port is using
resources 378-037A

any ideas?