Sound problem :S

Hello all and thanks for reading this…
I have the following problem with opensuse 11:
I got my ALSA sound driver running and working, but when a program is using the soundcard, no other program can do it…so for example if I am watching a video with firefox at youtube, and then i open exalie, I first have to close firefox and then open exalie to get it play something. and so on with all applications that use sound… Somebody knows what can it be?
I tried reinstalling the alsa drivers but the same issue came on…
Thanks for any help!

Check this:
Only one app have sound for one time - openSUSE Forums.