Remove the soundblaster card and bootup then see if the problem is still there? Reinstall it in a different pci slot. Could be irq conflict or shared irq that is not being seen as a fault by xp. The sb drivers that winxp uses are from creative anyway so using the latest drivers shouldn't be a problem. Try using creatives auto update site, it reads your sbcard and selects the latest drivers and software for all your sblive programs. Also, remember to disengage your mobo's soundcard from the cmos and remove any mobo audio drivers after bootup, if your mobo has audio as well which it probably does.