I don't know if it helps or not, but I had problems with Netscape too. Which version are you using? I loaded the newest possible for testing, along with their "Sun Java" whatever, and it didn't work at first. Then I restarted and all of a sudden it started working. Not sure why. Now everything looks almost the same in both browsers.

I don't know why it should be any different for you then, if you're using the same code here.