Hello. I am running Arch up-to-date 64-bit, with Gnome desktop environment. Until recently, the Gnome-disk-utility (Gnome "Disks" program) was working fine. The Gnome-disk-utility is currently 3.20.1-1, apparently updated 2016-04-12. Today, when I start it using either the icon on the favorites menu on the left side of the desktop, or from the catch-all icon on the favorites menu, that goes to all of the icons that actually launch application programs in Gnome, either way I just get the drop-down menu labeled "Disks" in the top menu bar of the Gnome desktop. No window appears for "Disks". In the drop-down menu there are 4 choices: 1) "Attach disk image" 2) "Help" 3) "About" 4) "Quit" Clicking Quit: the program never launches, the menu just goes away. Clicking Help: the program never launches, but a Gnome Help window titled "Disks & Storage" does pop up. Clicking About: -nothing happens. Clicking "Attach disk image" just the far left part of a window pops up, the rest of the window is past the right edge of the desktop. The window is titled "Select Disk Image To Attach". It looks like a window from Gnome "Files" (Nautilus). Clicking "Cancel" makes that window go away, revealing the main "Disks" window, which *seems* to work as usual, but I am reluctant to test it out. Clicking the "X" buttion dismisses the window, as expected. (Note: at times investigating this, the gnome-disk-utility window(s) may lock up, as well as the mouse, requiring the entire desktop to be "crashed" manually using alt-ctl-bksp, to escape.) I have, in various combinations, 1) rebooted 2) updated (sudo pacman -Syyuv) 3) reinstalled gnome-disk-utility (sudo pacman -Rs gnome-disk-utility) 4) downgraded using the local package cache to the previous version,and the the version before that (sudo pacman -U gnome-disk-utility-3.20.0-1-x86_64.pkg.tar.xz, and sudo pacman -U gnome-disk-utility-3.18.3.1-1-x86_64.pkg.tar.xz) 5) upgraded gnome-disks-utility again (sudo pacman -U gnome-disk-utility-3.20.1-1-x86_64.pkg.tar.xz) 6) searched online for information 7) told the problem it was not wanted here and to please go away. The problem did not go away. Note: part way through the process, gnome-terminal suddenly showed the same problem, which went away as soon as gnome-terminal was reinstalled. So I suspect that the problem may not be with gnome-desktop utility, but with something else, perhaps recently updated, in the Gnome system. I did rely upon gnome-disk-utility, especially to manage external usb disks without losing data, so this is a real problem. Has anyone else run into this problem? Any solutions? Any ideas?