Hi Brian, me again haha OK, I cracked it. I got the / the wrong way round. I got a GDI to load from within GameEX, problem now is: it won't open any other GDI's. Whenever I map the names e.g. VirtuaTennis.gdi "Virtua Tennis", the name of the folder it's sat in (usually the game title) appears, along with the mapped name "Virtua Tennis", but none open - nulldc crashes. What do I need to do here? I'm so close I can feel it