Har du hentet Win XP driveren til kortet - filnavn M2E_XP2080_sign584363.zip?
På ESS's site står:
"ESS Technology manufactures only the audio or modem chip(s) used by the manufacturer of your sound or modem card. You should always use the latest driver from that manufacturer. ESS Technology provides the generic drivers at this site just in case you are unable to contact the manufacturer of your specific board. Although these drivers should work in all implementations, ESS Technology cannot guarantee their operability with any specific card. If you need help in determining your card’s manufacturer, please read our FAQ."
http://www.esstech.com/techsupp/drivers.shtm