Hi Louiek, your solution worked like a charm with one problem. I have x230, testing with many RAM configurations. gtx 970. I plug in the monitor in windows and all is great but games with full HD (skyrim / lords of the fallen) crash when entering game. interestingly these games as well as games with low requirement run fine. Also skyrim and lords of the fallen run greate on laptop internal screen with good fps (it has lover resolution than full HD). not sure what to do now - maybe time to fix error 12 anyhow... guess this is a problem when graphics card needs to use more memory? If I wanted to play on laptop internal screen the solution would be great.