How can I fix my game's resolution?

I installed battlefield 2 with vista and it worked fine on my widescreen, but when i upgraded to w7 it the game screen got smaller, i tried changing the resolution but it doesn't go to 1440x900, and it has 2 black bars on the side of the screen. the same thing happened to the sims 3 but i could change it on the graphincs option panel, and also on the warcraft 3 but i was able to change it on %26quot;regedit%26quot; . but BT2doesn't have the video option to change the resolution on regedit and i have it on the highest resolution possible but still i cant get to be as it was b4... please help. by the way my pc is a hp pavillion dv7 w7 64 bit.How can I fix my game%26039;s resolution?
From widescreengaming.net:



Battlefield 2 does not have native widescreen support. To force a custom resolution, edit your game shortcut so it looks like the following:

%26quot;C:\Program Files\EA Games\Battlefield 2\BF2.exe%26quot; +menu 1.15 +widescreen 1 +szx 1440 +szy 900

-or-

%26quot;C:\Games\BF2\BF2.exe%26quot; +widescreen 1 +szx 2560 +szy 1600

Edit the numbers after '+szx' and '+szy' to match your desired resolution. '+szx' is horizontal and '+szy' is vertical. In the first example, the game would launch in 1440x900 (16:10). In the second example, the game would launch in 2560x1600 (16:10).How can I fix my game%26039;s resolution?
i had a simalr probelm but on windows xp i just kept joing games and it fixed it self sooner or later took about 20 timesHow can I fix my game%26039;s resolution?
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