Support Information:
Device Type: Sound Card
Manufacturer: sound max
Model: sound card
Interface: USB
Operating System: Windows XP Professional
Age of Device: < 2 years old
FCCID:

Find it on DriverGuide (http://members.driverguide.com/index.php?action=srch&sm=b&aax=&qa6=&qa5=19&qa7=1500&dp=2&qm0=sound+card&jmd=and&fzz=d) | Find it with Google (http://www.google.com/search?hl=en&lr=&ie=UTF-8&oe=UTF-8&q=sound+max+Sound+Card+sound+max+sound+card+Window s+XP+Professional+)

Please read all the posts in this thread: http://forums.driverguide.com/showthread.php?t=25777

Until you provide adequate info about the device, we cannot help.

Did it come installed in a factory built pc? If so what is the brand and model?
Did it come installed in a retail or OEM motherboard? If oem, provide the pc makers name and model number.

SoundMax never made a USB interfaced sound card. SoundMax only makes chipsets and sells them to various manufacturers to incorporate into their hardware.