Questions About Graphical User Interfaces

[Acies]

Not sure what you have tried, or abided by when making your stuff. I opened the:
gui\default\gui_def_pointer_normal.tga

and observed the scale of the image. The thing is set as follows - Width: 14 Height: 25

It's set in a 9:16 relation, where 9 is the width and 16 is the height. I'm assuming this is to 'counteract' some sort of scaling which happens in game, where the 16:9 (1080p) resolution stretches the image.
Edit: Short video of it: http://www.twitch.tv/acies404/c/4136335

14 (width of the image) x 16 (widescreen width relation in 1080p) = 224
25 (height of the image) x 9 (widescreen height relation in 1080p) = 225
In the end; an almost square shaped image.

Which would mean that in order to display an image properly you would have to stretch it some extra in height to account for widescreen resolutions. That 'extra stretch' should be proportionate to account for reversing the 16:9 widescreen-effect.

You might already have noticed this though, if not, gl hope it might solve something :]