I'm just going to throw some suggestions out there. First, have you checked what the IRQ and Port settings for your card are in Windows? If you go to Device Manager you can check the properties of the card, then make sure your DOS Autoexec settings match those. And check the card itself, I remember on older ISA Soundblasters that they had jumpers on the cards for setting the IRQs. Also, the T setting seems like it should be a 1 or more likely 3 as it appears your card is a newer version of the original Soundblaster.