In my case, every time the font-lock stops working, I get the following message in *Messages*
Stack overflow in equal I am using Emacs : GNU Emacs 20.7.1 (i386-redhat-linux-gnu, X toolkit) of Fri Mar 16 2001 on porky.devel.redhat.com Package: JDE version 2.2.9beta9.1 Required packages: semantic-1.4beta13 eieio-0.17beta3 speedbar-0.14beta2 I can generate a more detailed bug report, if it would help. Nick