This is a bug in Qt the graphics toolkit calibre uses. It will hopefully
be fixed there someday, until then you just have to work around it,
which can be done by either disabling the system tray icon and
minimizing instead of closing the window or actually clicking the system
tray icon when you reconnect to restore the window.
This is a bug in Qt the graphics toolkit calibre uses. It will hopefully
be fixed there someday, until then you just have to work around it,
which can be done by either disabling the system tray icon and
minimizing instead of closing the window or actually clicking the system
tray icon when you reconnect to restore the window.