Applet http://www.gamesville.com/games/hearts doesn't load on windows2008-x64\64bit-6u15b02-j4b and ff3.0.

win2008se-x64 6u15b02

# Steps to reproduce:
1.Go to URL provided.
2.Login as user 'abc' with password 'abc'
3.Click on 'Hearts' in the 'Cards' section.
4.Choose a room to play in or click the 'Play Now' button.
5.Review instructions if desired.
6.Play the game testing all features and functionality.
7.Attempt to resize the applet/browser window.
8.Exit the applet and reload it.
9.Close all the applet/browser windows.
10.Check the Java Console for errors/warnings.
# Actual behavior:
Display blank screen when the applet was loaded.

#Expected behavior:
The applet can run normally.

# Java console exceptions:
None

#Validation of fail case
1. same configuration/6u10 b33
Same problem.
2. same configuration/6u15 b01
Same problem.
3.same JRE ( windows-i586 bundle ), WinXPPro x86 FF3.0
The applet can run normally.
4.same JRE ( test target ), same OS/platform, IE 7 x64
The applet can run normally.