So, for some reason, other 16:9 resolutions do not display correctly on my 1920x1080 native monitor.
When I try 1600x900, it is stretched with very large letterboxing on the top and bottom.
When I try 1366x768, there are black bars around the entire thing, and it is small and in the middle of the screen.
I've had the same HD monitor the entire time, but I used to have a different video card and these resolutions worked just fine. I now have a Radeon HD 5770.
What can I do to get these resolutions to display correctly? (BTW My monitor is a HP w2338h and connected via VGA)