I had Gimp running happily on OS X and used it occasionally.
However I tried to start it today and it now crashes on start up. I have applied at least one apple security update since the last successful run, but couldn't be more specific. I am on 10.6.4.
This is the error I get on the terminal
Last login: Fri Sep 24 11:36:50 on ttys000
/Applications/Gimp.app/Contents/MacOS/Gimp ; exit;
karencookesimac:~ karen$ /Applications/Gimp.app/Contents/MacOS/Gimp ; exit;
2010-09-24 11:58:51.967 defaults[6440:903]
The domain/default pair of (org.x.X11, dpi) does not exist
Xlib: extension "RANDR" missing on display "/tmp/launch-re0ls0/org.x:0".
(gimp-2.6:6448): Gimp-Base-CRITICAL **: temp_buf_new: assertion `width > 0 && height > 0' failed
/tmp/skl/Gimp.app/Contents/Resources/bin/gimp: line 11: 6448 Segmentation fault gimp-2.6 "$@"
I tried reinstalling Gimp but get the same issue.