A bug in MATE Desktop has decided for me. My new distro and desktop is #Debian with #XFCE. Things are very good. I'm still using a bunch of MATE apps like Caja (file manager), Engrampa (archiver), Atril (document viewer) but those all integrate fine. I kinda wish #LinuxMint would move to #LMDE as the main distro, Debian could do with the extra polish and settings and helper apps.