https://bugs.winehq.org/show_bug.cgi?id=39547
--- Comment #5 from Chituc Georgian dianaxxyyzz@gmail.com --- I tested about 5-10 apps that display tool tips and from what I see all is fine for all the app . In photoshop all toot tips work great , except from some tool tips what are created via CreateWindowW() using a NULL hInstance .These are just few tool tips and not very important in Photoshop Cs6. Photoshop use CreateWindowW() to create them and send a NULL hInstance . And having NULL hInstance , the linux windows manager can not control and make this tool tips dissappear from screen .So I choose to just do not display this tool tips taht are created with a null hInstance . That way I put this line : if ( cs->hInstance == NULL ) return 0; . Maybe there is a fix , but for momment I do nto have time to dig more . Over all for me all looks good.