Go in your config and go to plugins there is a plug-in called res fix clicked on that and enable it if you got one system that goes out of screen type in that name of the system correctly and it will work for that one system but if you got multiple systems type in all the names while separating the names with semi-colons and that should work I had the same problem and found out resolution fix in the plugins fixes that problem just type in the name of the emulator as you have it in the display are emulators name and it should work hope that helps