try right clicking on one of the milkshape screens and make sure that "Draw Backfaces" is
not checked this will show you if you have any faces that are "holes" (pointing the wrong direction)
because sometimes when connecting verticies together, like you said you are doing, you will create them facing the wrong way... the order you click on them when creating a face is important, if you click on them clockwise then it will face one way, if you click on them counter-clockwise they will face the other!
"We make the worst games in the universe..."
