Blender not rendering specified dimensions I was making a channel art photo for my YouTube channel, and everything went smoothly. But when I rendered the image it wasn't the resolution that I specified.
I wanted the image to look like this:


But the rendering came out like this:

How do I make it so it doesn't do this??
The stretched height comes from you having an 3:2 aspect ratio.

You would normally only want to adjust the aspect ratio when rendering video that is intended for older tv's with non-square pixels.

The reason you are seeing the distortion is that the uv image editor displays images in 1:1 aspect by default, you can adjust this to match your render settings in the Display panel of the UV/Image Editors properties region N.