Comment 1 for bug 567223

Yiannis Petevis (y-petevis) wrote :

Had the same problem here. For a workaround open a terminal and do the following:
gksu gedit /usr/bin/ubuntuone-preferences

find line 304 and change gtk.MODAL to gtk.DIALOG_MODAL

Save the file. Kill the hanging ubuntuone-prefererences process and restart. This time you will get a popup dialog with the error. Note that the dialog does not close if you click the close button; you have to close the popup from the window close button.