Comment 8 for bug 971975

> 'http://download.tuxfamily.org/glxdock/mediacolor/album8/1333390117_752c6d45d9/Gmail.tar.gz.png'
Oh, it seems you've dropped the png file and not the tarball ;)
Simply drop this link onto the dock and it should be better: http://download.tuxfamily.org/glxdock/mediacolor/album8/1333390117_752c6d45d9/Gmail.tar.gz

> (Is there a switch to force the terminal to remember more of the session? -- or to write the results to a file?)
Sorry, I'm not sure that I understand what you want. Do you want to have an unlimited scrollback buffer? If yes, simply edit your Gnome-Terminal profile and enable the option to have a unlimited scrollback ;)
If you want to redirect the output messages to a file, simply add that at the end of your command: ' > YOUR_FILE'. E.g.:
   $ cairo-dock -l debug | sed -n "/mail\// {N;p;}" > ~/cairo-dock-mail.log