You have misunderstood, partly, what is happening. In the first picture, you are right, I want to delete that edge. But when I do, the whole model goes to the shitter ie: I get WIERD faces appearing in places which couldn't and shouldn't possibly have faces - I get wierd anomalies etc. The seccond lot of pictures I posted (with the two objects), show how I made the first picture. I started out with two objects and I wanted to mege them into one big object with a SINGLE face on the side. Maya won't let me delete this edge where the two objects combined, even though I have merged all the verts and made them ONE object... What should I do then, leave the edge there and split up the polygon more? I would have thought you would try and MINIMISE the number of edges in a model, Maya isn't exactly helping me do this :/ Owell..