I am having the same problem

Same here. Firefox i rarely have sound, or it comes to late. Internet explorer works better for sounds, but shuts down more often

There's only one solution:

FOR INTERNET EXPLORER
1. Select Internet Options from the Tools menu.
2. Click the Security tab.
3. Click Custom Level in Security Level for this Zone.
4. Scroll down to Scripting, near the bottom of the list.
5. Under Active Scripting, choose Disable.
6. Click OK to leave Security Settings. Click OK to leave Internet Options.

FOR FIREFOX:
1. Select Options... from the Tools drop-down menu.
2. Select the Content section from the options at the top of the pop-up page.
3. Check OUT the “Block pop-up windows,� “Load images automatically� and “Enable JavaScript� boxes.
4. Click OK.


peace