Sound card's IRQ setting

Hi I have a creative soundblaster compatible soundcard in
my system which used to work fine up untill about 4 days
ago, I took the card out and put it back in and now it
wont work properly. I think the drivers got lost. The
model number tells me its a Vibra 128, however Ive
downloaded/installed all the drivers for this card from
creative's website and it still wont work. Im wondering if
the IRQ setting is wrong, and if that could be playing a
role. The currenty IRQ setting is IRQ10. Should it be
changed? If so, to what? Thanks