This is copied from a post by NickN in Hardware.....I'm not sure if this the right place but I know it's helped me and my screenshots GREATLY.  Give it a try.......

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have you guys tried the new beta 174.74 drivers?

http://www.nvidia.com/object/winvista_x64_174.74_whql.html


I use them for the 8800GTX in WinXP x64 (but the XP version)


also, use Nhancer Beta with these and set it up as such:

http://forum.nhancer.com/showthread.php?t=269

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Install and run the latest version of Nhancer. It does NOT need to boot with Windows or have a tray icon since the service runs in the background and will properly influence the settings. When it is first run select NO to have it run with Windows or have it place an icon on the tray.

NOTE: FOR VISTA ALLOW THE SERVICE TO INSTALL WHICH IS NEEDED TO OVERRIDE UAC

With any driver above 163.xx Nhancer can no longer delete the profiles as it did in the past, instead the way you OVERRIDE the FSX and FS9 profiles is do the following:

NOTE: you can see IMAGES of the following settings at the BOTTOM of this thread: http://www.simforums.com/forums/forum_posts.asp?TID=25186&PN=1


a.
Scroll down the profile list until you find the Microsoft Flight Simulator 2004 (or) Microsoft Flight Simulator X profile. Click on it once to highlight it. Once it is highlighted, click the DUPLICATE button. You will get a message, select YES to complete the duplication. What that will do is DEACTIVATE the Nvidia profile and ACTIVATE your new duplicate.

b.
With the new profile in the list, make sure there is a bullet in PROFILE on the right. Go down the list on the right and select the following:

AA:
For FSX select SUPERSAMPLING and 8xS (use 8xS Steve)

NOTE: Slower cards and systems in FSX, set to MUTISAMPLING and 4X or SUPERSAMPLING and 4xS

NOTE: FOR THE BETA VERSION THIS HAS CHANGED... SET AA TO COMBINED 8xS

Under the next box, check GAMMA CORRECTION

DO NOT ENABLE THE SECOND SUPERSAMPLE FEATURE IN THIS AREA

UNCHECK "ENHANCED AA" if it is checked by default


AF: CHECKED

Bullet in: 16X

VERTICAL SYNC: CHECKED, Bullet in: FORCE ON


OPTIMIZATIONS Tab:

Texture Filtering CHECKED Bullet in - High Quality
Trilinear Opt CHECKED, Bullet in - Off
Aniso. sample opt. CHECKED, Bullet in - Off
Negative LOD BIAS, CHECKED, Bullet in - Clamp

Check the next three items but do not change their values

COMPATABILITY TAB:

Place a CHECK in all header values but only change the following if needed:

Force Mip-Maps = NONE
Conformant Texture Clamp = ON
Hi Dynamic Range HDR (Enabled)

All others should be at their default values.

Under the CPU Multicore Support, REGARDLESS OF THE TYPE OF CPU YOU USE:

FOR WINDOWSXP SET CPU TO SINGLE
FOR WINDOWS VISTA SET CPU TO MULTICORE

Repeat the above for any other game profile as you may need it.



c.
In the main Nhancer Window, set the bullet to GLOBAL

Set the SAME settings on GLOBAL as you did above.

Close Nhancer and reboot.

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Nice one. I'll throw it into our tutorial library first chance I get.

Just so you know, NickN is the one that posted this.  I just put it here to help other people

I tried to install nhancer and got this error message;

nHancer can not be installed on systems with .NET Framework version smaller than 2.0

I know my computer isnt the greatest, but is it at all possible for me to get this?

Beat Me to it Harold