Multimedia :: flash9-beta

Well,

After reading that flash9 beta linux is not compatible with OSS sound driver, but ok with ALSA,

I have installed "alsadeb" with mydsl on an DSL release 3.01, because DSL use only OSS.
ps : mydsl "alsa" is only for DSL 2.x.

But no success, firefox (any version) always crash after few seconds consulting a flash content.

So why ?  DSL-N (rc3 and rc4) + firefox 2 + flash9  :  crash !
and DSL-N (rc3 and rc4) + firefox 2 + flash9   + mydsl "alsa" : All is working fine

Is anybody have an idea to help me ?

Thanks a lot for your try.