hi, i have this probleme too https://lists.ubuntu.com/archives/kubuntu-bugs/2007-April/024868.html
it starts after 8-10 songs playing
i can fix it only xith reboot and after 8-10 song the probleme come back, i dont have sound for the next song and come back on the other next
when i dont have the crossfade works fine
thanks you

i can keep it like that but i like the crossfade and was the first thing that i make attention when i was used amarok for first time
Dimitri

mandriva 2008 kde 3.5.7 amarok 1.4.7