Dude
I if you want to know if something is going wrong in the applet when runing in the browser you need to enable the java plug in ur control panel.
Start->Settings->ControlPanel->javaPlugin
IN
Basic Tab
select --Show console
Select -- Show Exception Dialog Box
If you do this when ever u run an applet in a browser applet dialog box will pop up and if there is an exception it will be shown in the dialog box.
hope this helps....