For once I'm not asking a question here, but posting information that
someone will hopfully find useful.
I've got a ATI Mach64 video card. Under the XFree86 3.1.2G beta I had
netscape running fine. After upgrading to the 3.2 release (had to because
of the timeout) I had nothing but trouble with netscape crashing (yeah, I
know about the libgnumalloc trick, that wasn't the problem it would
acutally crash X!). I played with various settings, etc but no luck. I
also had problems when I ran Lyx on another machine with the display set
to the machine with the Mach64 card - this also crashed X windows.
I just about gave up and considered buying MetroX. Today I downloaded the
XFree86 3.2A beta and installed it. I've been able to run java applets in
netscape reliably (its been running something in the next window for about
15minutes now) for the first time since January! Also was able to run Lyx
from the other machine with the display set to the Mach64 machine without
Hope this helps anyone who was having a similar problem.