Hello, On my x86_64 Fedora 8 box I have the problem that dual soundsources playing at the same time cause the blocking (hang) of one of them. E.g.: start xmms to play an MP3 via alsa output; mail comes in and Thunderbird needs to play a sound. This can not be done and the app becomes unresponsive. E.g.: Play sound with xmms and play test sound via system -> preferences -> hardware -> sound. The config tool hangs. What is wrong? What do I need to check or change? Kind regards, Udo