I have NAM v.48 installed on my MacBook Air. I play SC4 through steam. I have issues with some NAM features not functioning properly, for example, some draggable features not working and only plopping on one square at a time. Other issues are with pieces not quit fitting together properly like with the highway pieces. Is it supposed to be this way or am I not using the features correctly? Or perhaps I don't have the mod installed correctly? I need help with this because I'd very much like to utilize all the tools to build the best cities.