Support Information:
Device Type: Sound Card
Manufacturer: crystal
Model: ct4810
Interface: PCI / ISA
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=ct4810&jmd=and&fzz=d) | Find it with Google (http://www.google.com/search?hl=en&lr=&ie=UTF-8&oe=UTF-8&q=crystal+Sound+Card+crystal+ct4810+Windows+XP+Pro fessional+)

ct4810 is not a crystal chipset... it's a Creative Labs chipset. Try these drivers:

http://members.driverguide.com/driver/detail.php?driverid=139602

http://www.softwarepatch.com/utilities/creative-ct4810.html