Does anyone know why I have 3 rows of tiles on my Surface RT normally, but when connected to a projector it changes to 4? A while ago there was a way of changing the number of rows by altering the resolution, and I tried this but decided to revert back. I think it has been different since I reverted back, but I'm not sure how to get back into that edit mode to check. Thanks Edit: I've just realised this should be in the "Help" forum. I can't delete it so feel free to move it for me.