I also had a similar experience running edgy. I was saving a png file in the gimp. While the file was in the progress of saving (about half way though) I navigated to the directory where i was saving the png using nautilus. I believe the crash may be a combination of nautilus trying to thumbnail the file, while it was being saved in the gimp. I have attached a crash report.
** Attachment added: "Crash during png save." http://librarian.launchpad.net/5535225/_usr_bin_gimp-2.2.1000.crash -- Gimp crashed after saving a PNG file https://launchpad.net/bugs/67754 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs