Random white screen when trying to run applet (Please help)

We have been plagued by this problem for months. We are running a Java applet (that we wrote) requiring JRE 1.3.0_01, where the html file has been created with html converter. RANDOMLY, when loading the applet, the applet will come up (we spawn a new browser window for it) and we will get a blank white screen, AND netscape will freeze, needing to be terminated. Saying program is not responding when you click the X.
This is not a multithreaded program.
I have also tried the new JRE 1.4 with the same problems.
The strange thing is, we have found some workarounds.... if you tell your plugin to show the java console all the time, it takes care of majority of the crashes, but the applet STILL does the same thing every once in awhile. If someone can tell me what the problem is here I will be eternally grateful!!
Steve

I had the same problem at one time during the development of my applets. Without more details from you, there is no way to know the exact cause but I can give you some ideas:
1) painting problems
2) null pointer problems
3) improper setup of the HTML file (this was the culprit for us...double check EVERYTHING)

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