any help appreciated
no.email.addys@allowed.com

Support Information:
Device Type: Sound Card
Manufacturer: mercury
Model: cmi 7838 pci 4.
Interface: PCI / ISA
Operating System: Windows XP Professional
Age of Device: Not specified
FCCID:

Find it on DriverGuide (http://members.driverguide.com/index.php?action=srch&sm=b&aax=&qa6=&qa5=19&qa7=1500&dp=3&qm0=cmi+7838+pci+4.&jmd=and&fzz=d) | Find it with Google (http://www.google.com/search?hl=en&lr=&ie=UTF-8&oe=UTF-8&q=mercury+Sound+Card+mercury+cmi+7838+pci+4.+Windo ws+XP+Professional+)

That would be a Cmedia Inc. CMI8738 (not CMI7838 as you say). Drivers are located here:

http://www.download.com/CMI8738-WDM-Driver/3000-2120-10495782.html?part=dl-CMI8738WD&subj=dl&tag=button