Platform : Solaris 8 /Red hat Linux 6.2
Browser : Netscape 4.x/ NS6

Steps to Reproduce

On a solaris machine , Install the J2SE for merlin build 54 from :
/net/sqesvr/deployment3/merlin/beta/solaris.b54

 2.) go to the below link and execute the testcases
      http://java.sun.com/products/plugin/1.3/demos/applets.html

 3.) Execute any sound enabled demos eg : Animator example1.html

Result : demos are being displayed fine but sound is broken