That should be ...
C:Program FilesMicrosoft GamesHaloHalo.exe -vidmode 1680,1050,60
not ...
C:Program FilesMicrosoft GamesHaloHalo.exe -vidmode1680,1050,60
Also ... from the solution thread ...
Paradigm Shifter wrote:
But (and this is a big but) resolutions that high can't be handled by less than a 256MB card. It needs just over 128MB of card mem for the resolution/framebuffer/texture memory etc ...
EDIT : some more info for you ... I just reinstalled to double check things worked ... :D
Get patch 1.6 from here ... http://www.fileplanet.com/130978/download/Halo-v1.00---v1.06-Patch
If you let the game auto update then it will update to 1.07 and the FOV hack won't work.
Here are some screenshots ...
Click to enlarge ... even when enlarged they are not full size.
Normal 4x3 ...
16:9 ... with FOV hack you can alter the FOV to whatever you like ... it only works with version 1.0 to 1.06 ... get it here ... http://toca.game-editing.net/files