If you clear your browser cache and run any of the following applets you will see a gray screen:

http://jfx.us.oracle.com/hudson/job/2.2-graphics-scrum/label=windows-i586-14/lastSuccessfulBuild/artifact/artifacts/apps/ga-samples/BrickBreaker.html
http://jfx.us.oracle.com/hudson/job/2.2-graphics-scrum/label=windows-i586-14/lastSuccessfulBuild/artifact/artifacts/apps/ga-samples/Ensemble.html
http://jfx.us.oracle.com/hudson/job/2.2-graphics-scrum/label=windows-i586-14/lastSuccessfulBuild/artifact/artifacts/deployed/DefaultSignedApp/SignedFish.html
http://jfx.us.oracle.com/hudson/job/2.2-graphics-scrum/label=windows-i586-14/lastSuccessfulBuild/artifact/artifacts/deployed/DefaultPreloader/Fish.html

You need to run it on the j2d pipeline because there is another glass bug RT-22710 that prevents es2 pipeline from running.