Yep, i thinks is windows problem, Before activate the 32" Led as principal monitor all work ok. After that , all gameex and mameplus running in monitor 3(7") and game extedender and game info run in monitor 2 (22") I must set the gameextender monitor as primary, an set //DISPLAY2 as principal in mameplusUI (Monitor 3 is detected as //DISPLAY1 ) In Nvidia Control Panel all is detected Ok . I dont know what happen between. Never before have this problem switching monitor... if you add a CL switch for this (like [iNFOSCREEN = 3] would be great! bye EDIT: SOLVED! is a nvidia issue, i uninstall driver, restart , reinstall lastest version of nvidia driver, restart and all work fine again Byeee