You can't do that since on is a standard 4:3 aspect ratio and the other is a 16:9 aspect ratio.

 

use the Fallout 3 Launcher, and in the launcher where it says play settings blah blah click on settings and change your resolution there, and if it is still popping up in a window try to click anywhere inside the window, and then press Alt+Enter, and it should bring it to full screen, that worked for me anyhow when i was having probs with the resolution and window mode.

 

You can't do that since on is a standard 4:3 aspect ratio and the other is a 16:9 aspect ratio.

No. None of those resolutions are 4:3 aspect ratio, but I appreciate the input.

If you change your screen resolution and also wasn't work, there are two methods, one is that you re-download a new one, another you change your screen.

I don't understand what you mean with "re-download a new one" - I bought my game... Also I don't really feel like changing my screen for something that is clearly a software problem.

use the Fallout 3 Launcher, and in the launcher where it says play settings blah blah click on settings and change your resolution there, and if it is still popping up in a window try to click anywhere inside the window, and then press Alt+Enter, and it should bring it to full screen, that worked for me anyhow when i was having probs with the resolution and window mode.

Tried it. Wouldn't work... Also I've tried many different resolutions through the fallout launcher but the only one working is 1680 x 1050...

It's really frustrating that the game just wont play in the resolution I chose because it will only fit if it's exactly the same resolution I use in windows.