cairo-1.2.0 problems on Solaris

[Raymond Meyer <raymond.meyer%rambler.ru@localhost>]

# gtk-demo             
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
Assertion failed: NOT_REACHED, file cairo-image-surface.c, line 144
Abort

Well cairo-1.0.4nb1 used to work fine, why does it say it does not yet support
something? Anyone knows what the above error means?