Repaint problems with an applet under Netscape 4.75

Hello,
I'm currently working on an applet created with VisualAge for Java, running under the standard Netscape 4.75 JVM, with Windows NT4.
I am experiencing problems with AWT components which randomly disappear, especially Labels and sometimes Panels. When I drag a window over the missing label and then drag it back, the label appears.
I have tried a lot of combinations with the repaint(), paint(), paintAll() and paintComponents() methods, but it has not been efficient for the moment. Introducing lots of repaint() calls on the concerned labels is even worse.
Is there a known bug in the Netscape 4.75 JVM concerning this problem ? Do you have an idea of what can be done to solve this problem ? Changing the JVM is not an option that can be chosen. Netscape 4.75 has been defined as the only browser for the whole project.
Thanks for your help !
Kevin

Well, I finally solved this problem.
For your information, the JVM included in Netscape 4.75 running under NT4 does not like having AWT labels with either Background or Foreground not initialised. If any of these 2 properties is not defined, it could sometimes occur that the JVM can't display the label.

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