sound server conflic between amarok and firefox

whenever i use amarok, the firefox doesnot play sound. and whenever i use firefox, amarok says that audio drivers are not initialized or used by another program. How can i set up the audio so that they both can use it at the same time together.

i have to close and restart both to switch playing the sound between them.

I have the same problem,
I’m using openSUSE 11.3 and KDE 4.6 …

Any way to solve it ?