Thanks for the Portal wallpapers! Awesome!
Also... try to change the file type to a jpg when you save it.
I'm on a Mac so all I have to do is erase the .htm at the end of the image and switch it to .jpg but Windows doesn't do that.
Once upon a time I had:
2012 SGM SEL Sedan Job 1 BD 6/2011
FSWERKS Cool-Flo w/ ITG Filter | FSWERKS Stealth Exhaust | 17x7.5 Axis Sport XMX Graphite wheels | Eibach Sportlines on Ti Handling Pkg bits