Hi folks. I've just build a new FC4 system on a spare tower box I had and all worked fine. This system is replacing an old RH7.3 system running in a rack chassis which has a different motherboard etc. However, when I transferred the HDD to the rack chassis and powered up I had 2 problems. This problem is that although the soundcard is configured and working fine - I ran system-config-soundcard and all looked and sounded fine - I get an error message when I log into a KDE session. The Message is: Window Title: Informational - artsmessage Window Content: Sound server informational message: Error while initializing the sound driver: device: default can't be opened for playback (invalid argument) The sound server will continue, using the null output device. I don't get any sound from X/KDE applications, but if I use 'play' it works fine. Anyone any ideas what these mean, and how I can sort it? The box is FC4+yum update. Cheers Gary -- Gary Stainburn This email does not contain private or confidential material as it may be snooped on by interested government parties for unknown and undisclosed purposes - Regulation of Investigatory Powers Act, 2000