For what it's worth... I have FC1 installed on a Gateway M500 laptop. When the kernel versions 2149 and 2154 were installed all went as expected until ALSA was installed. Originally, I rebuilt kernel-module-alsa using alsa-driver-1.0.1-2.fr.src.rpm for version 2149 and 2154 but I also tried the freshrpms kernel-module-alsa for 2149 with the same results. Version 2154 has been used with my rebuild only. The command used to rebuild the module is: rpmbuild --rebuild --target i686 alsa-driver-1.0.1-2.fr.src.rpm As I indicate, both versions work just fine until their respective ALSA module is installed. Then, just after a reboot and login a message is displayed stating that a CPU overload has occurred and the sound server is being shut down. I also have gkrellm running and according to it, the CPU is indeed running at 100%, until I clear the message - then the CPU usage drops down to just a couple of percent. As I'm no programmer I have no idea as to what is happening here. I'm just reporting on what is occurring with FC1 on this laptop. BTW, kernel version 2140 works just fine with alsa... Maybe I should be posting a bug at Bugzilla on these two kernels but I just wanted to get the info out to the community in general... Mike