Strange one here. Just built a machine, XP pro loaded. Loaded motherboard drivers including sound (C-Media) and all drivers load OK. When prompted to reboot from driver installation disk, I get the Windows Logging Off 'chime' - so I know drivers are in and speakers work. However, when machine does reboot I dont get any sound - either from logging on or using a music CD etc. Seems like something is disabling the drivers, muting sound or something. Looked in Device Manager - all seems OK. Do notice that I dont get the volume icon in task bar and that on 'Volume control' on Device Manager (or Sounds & Audio, cant recall) I am missing SndVol32.exe. Now this could be causing problem but I'm not so sure as it cant be there on log-off after installing drivers when I DO get sound. Anything I need to check on boot up/log-on which can effectively mute or disable my audio? Thanks