Hello everyone, I've installed windows xp professional on other computer i have but there is no sound, there is no hardware conflicts or anything, 1.) i can see the volume icon in the system tray. if i open the volume control i can see there is no problem at all. 2.) i also checked "Device Manager" for any posible fealure of the sound driver but everything seem to be ok, no questions marks at all. 3.) i checked the volume in Control Panel, but once again everything seem to be perfect, it even say: This device is working properly. 4.) And finally, i updated the sound drivers but still nothing. :-( I checked my headphones, my speakers, everything. I am aware of the SP2 or the SP3, but i think this have nothing to do with this. Any suggestion or any help will be very appreciate. Thanks in advance.