I thought this was a problem of Gimp, but the trace shows that it does read only operation. Since PRs currently don't work, I will link you to the original PR for Gimp: http://bugzilla.gnome.org/show_bug.cgi?id=376687 I still have the files and the traces and am willing to give them to anyone who cares. Almost forgot: FreeBSD mobileKamikaze.norad 6.2-PRERELEASE FreeBSD 6.2-PRERELEASE #0: Sat Nov 11 18:44:31 CET 2006 root@homeKamikaze.norad:/usr/obj/TPR40-6/i386/usr/src/sys/TPR40-6 i386 gimp-2.2.13_2,1 /dev/ad0s4 on /mnt/msdos/vault (msdosfs, local) Thanks to everyone who takes a look at this. I hope this will be fixed before the 6.2 Release.