My Sister has a Gateway w 2.5 Ghz Processor that I recently bought a new sound card for. Getting it to work is a different matter. I have been through the sound troubleshooter SO much that I can practically recite it in my sleep. I have checked for and removed 5 viruses from this computer and even started checking the registry. The new sound card has noise coming from the speakers when a sound should play but only a staticky type noise. Please help asap....