[Pan-users] 0.104 and VNC

[eto]

I just downloaded the 0.104 tarball, compiled it, and tried to run it
within a VNC session.  I got the following error:

Error: Cairo does not yet support the requested image format:
        Depth: 32
        Alpha mask: 0x00000000
        Red   mask: 0x000000ff
        Blue  mask: 0x0000ff00
        Green mask: 0x00ff0000
Please file an enhacement request (quoting the above) at:
http://bugs.freedesktop.org/enter_bug.cgi?product=cairo
pan: 
/home/dajobe/dev/debian/cairo/libcairo-1.2.0/src/cairo-image-surface.c:144: 
_cairo_format_from_pixman_format: Assertion `NOT_REACHED' failed.
Aborted


This is on Debian unstable.

Anyone have a clue what this is about?  Thanks.