[solved]Problem after running wow

hi
im using mint 18.3 in a ideapad 320.
i can run wow very well here :smiley:
but when i need to use the internet and i use alt+tab or super+d or change to another virtual desktop the screen bugs or something like that:
https://imgur.com/YrE3MnP
https://imgur.com/FS3O1Tn
https://imgur.com/03PsQzI
https://imgur.com/EuyVZx8
somethimes wow apears like a window whithout the boards:
https://imgur.com/CPOc7wK
https://imgur.com/KsXM0EG
no mater how many times i do alt+tab or super+d or change to another virtual desktop, the results are the same, and the only way to solve the problem is exiting the game and re-entering
can anyone help me solving this?
thanks and sorry about my poor english

solved playing in windowed mode

Also try setting Battle.net to exit completely when game starts (in fullscreen)