after trying to add a menu entry to the panel by right-clicking and selecting the appropriate entry, gnome-panel crashed immediately: (gdb) bt #0 0x00002aaaac02d0f1 in IA__gtk_icon_theme_lookup_icon (icon_theme=0x0, icon_name=0x874a90 "gparted", size=48, flags=0) at gtkicontheme.c:1203 #1 0x000000000043930a in panel_find_icon (icon_theme=0x0, icon_name=0x874a70 "gparted", size=48) at panel-util.c:593 #2 0x0000000000444936 in guess_icon_from_exec (icon_theme=0x0, ditem=0x86de60) at launcher.c:558 #3 0x0000000000444a9c in setup_button (launcher=0x873540) at launcher.c:607 #4 0x0000000000445551 in load_launcher_applet ( location=0x76c510 "bar-00e2bdf656.desktop", panel=0x79e880, locked=0, pos=1073741823, exactpos=1, id=0x767ce0 "object_7") at launcher.c:933 #5 0x0000000000445648 in launcher_load_from_gconf (panel_widget=0x79e880, locked=0, position=1073741823, id=0x767ce0 "object_7") at launcher.c:963 #6 0x0000000000435785 in panel_applet_load_idle_handler (dummy=0x0) at applet.c:865 #7 0x00002aaaadad4001 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0 #8 0x00002aaaadad52c1 in g_main_context_acquire () from /usr/lib/libglib-2.0.so.0 #9 0x0000000000000000 in ?? () #10 0x00002aaaadad54d6 in g_main_loop_run () from /usr/lib/libglib-2.0.so.0 #11 0x0000000000471fc0 in egg_recent_util_get_unique_id () (gdb) Portage 2.0.51.22-r2 (default-linux/amd64/2005.1, gcc-3.4.3, glibc-2.3.5-r0, 2.6.12-gentoo-r6 x86_64) ================================================================= System uname: 2.6.12-gentoo-r6 x86_64 AMD Opteron(tm) Processor 242 Gentoo Base System version 1.6.13 dev-lang/python: 2.3.5, 2.4.1-r1 sys-apps/sandbox: 1.2.11 sys-devel/autoconf: 2.13, 2.59-r6 sys-devel/automake: 1.4_p6, 1.5, 1.6.3, 1.7.9-r1, 1.8.5-r3, 1.9.6 sys-devel/binutils: 2.15.92.0.2-r10 sys-devel/libtool: 1.5.18-r1 virtual/os-headers: 2.6.11-r2 ACCEPT_KEYWORDS="amd64" AUTOCLEAN="yes" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-ggdb3 -pipe -march=opteron" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc /home /usr/kde/2/share/config /usr/kde/3/share/config /usr/share/config /var/qmail/control" CONFIG_PROTECT_MASK="/etc/gconf /etc/env.d" CXXFLAGS="-O2 -pipe" DISTDIR="/usr/portage/distfiles" FEATURES="autoconfig distlocks nostrip sandbox sfperms strict" GENTOO_MIRRORS="ftp://mirror.switch.ch/mirror/gentoo" MAKEOPTS="-j3" PKGDIR="/usr/portage/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" PORTDIR_OVERLAY="/home/blubb/gentoo/cvs/gentoo-x86 /usr/local/portage" SYNC="rsync://rsync.europe.gentoo.org/gentoo-portage" USE="amd64 X aalib alsa avi berkdb bitmap-fonts cdr cdrom crypt cups curl dvd eds encode esd foomaticdb gdbm gif gnome gpm gstreamer gtk gtk2 imlib java jpeg ldap lzw lzw-tiff motif mozilla mp3 mpeg ncurses network nls nptl nptlonly ntfs ogg oggvorbis opengl pam pdflib perl png ppds quicktime readline samba sdl slang spell ssl svg tcpd tiff truetype-fonts type1-fonts usb userlocales utf8 vorbis xine xml xml2 xmms xpm xv zlib userland_GNU kernel_linux elibc_glibc" Unset: ASFLAGS, CTARGET, LANG, LC_ALL, LDFLAGS, LINGUAS
upgrading gtk+ to 2.8.3-r1 apparently fixed this problem
great, thanks!