Reset internet settings, or disable the internal Java JIT (just in time) compiler, and then load the Web page that contains the Java program again. To disable the internal Java JIT compiler, click Options on the View menu in Internet Explorer, click the Advanced tab, and then click the Enable Java JIT Compiler check box to clear it.
If the Java program runs automatically when you load the Web page after disabling Internet Explorer's Java JIT compiler, the problem may be caused by an incompatibility between the Java program and the Java JIT compiler.
Hope this helps?
Dan