This was observed during running the Swing standard browser tests on Win 98. It seems a lot like 4197761, which was closed as a dup of 4213607, except I don't think it is, because there is no repaint problem.

Go To
http://javaweb/~nancys/BrowserSuiteJ/Suite/LLhtml/28/1.html
Select the Message tab
Modify the message and hit the Show Dialog button
Netscape 4.5 crashes. IE4 hangs sometimes. Works okay on both browsers sometimes, more commonly on IE4.
raj.premkumar@eng 1999-03-15

It also crashes both IE and NS when opening dialog in the SwingSetApplet through the About menu. The stack trace indicates that it crashes in AWT.DLL.

stanley.ho@Eng 1999-03-28