No audio device windows xp sp2

Check the Control panel under Sound and audio devices to see under Audio if you have a playback device selected, or if U can select any.
If you're in Device manager and see an exclamation mark where your sound card is supposd to be, just double click and go to the Driver tab and click Update driver and let it search the internet.
If not, just go to your PC's manufacturer site and choose your pc model and download the sound card driver.