This will fix it: (HDWALL)
http://forum.xda-developers.com/show...ghlight=hdwall
This is a collection of wallpapers:
http://forum.xda-developers.com/show...ight=wallpaper
Edit: It's an issue with TF3D
The problem is the original image you use is resized below the resolution of the actual screen & then stretched to fit the screen. It's pretty silly.