Improving faces inserting

[Stephen J. Turnbull]

Jerry James writes:

 > If it's an XEmacs problem, that should show us the offending
 > corruption or extra free().  Otherwise, we'll have to investigate the
 > possibility that libpng is at fault.

Thanks, Jerry, there's a good chance it *is* libpng:

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1382

Note that this affects pretty much all libpng up to v1.2.26.

Adam, can you send us a copy of the PNG in question?