You need to split it off in max unless uvmapper can split only certain polygons and keep them in groups....you need to select the polygons on the edges i've shown with the arrow and then split those off from the model, in C4d you can do this and keep it as one object which i'm sure you can do in max but now how ;o).....failing that split those off as seperate objects, then you'll have sharp edges but smooth everywhere else....can you show us it in wireframe, i suspect the edges where you booled are triangulated and uneven, if thats the case avoid them, i know it can be tricky building without them but you'll end up with better models and more skills.....having said that you'd still have the smotthing problem and need to split.....Steve