https://bugs.winehq.org/show_bug.cgi?id=57665
--- Comment #3 from RĂ©mi Bernon rbernon@codeweavers.com --- Thanks for the notice. Another option for The Medium seems to be to avoid sending RDW_ERASE on expose events but I believe this causes the virtual desktop to stop refreshing its background when windows are being moved, so it's not correct either.