Woa slow down you are making a lot of assumptions there and giving little information.

Video cards output resolutions. They don't control aspect ratio.

Aspect ratio is the shape of your monitor. And monitors and most drivers have aspect ratio scaling options inside windows.

But if you want a 4:3 image under DOS you need to use:

- a 4:3 or 5:4 monitor (close enough)

or

- Have a monitor with 4:3 aspect ratio setting

I've checked the 'Info' screen of my monitor (Samsung 2443BW) in dos and a couple of games (Wolf3D, Stunts), but my videocard always outputs 1920x1200 60Hz. So that may explain why everything is widescreen. Is this a nVidia feature?

What happens on the VGA port?

I have a similar problem with GeForce Ti4600 DVI under DOS: My card always scales to 1600x1200 (which is the native resolution of my monitor), but it also forces the refresh rate to 60Hz in all modes. This creates massive timing issue for applications which expect the standard 70Hz VGA modes instead.
The problem does not occur when using the analog VGA cable.

Mau1wurf1977 wrote:

What happens on the VGA port?

Scales correctly, 720x400 70Hz, in DOS and 320x200 games, but i don't want to use the passthrough cable with the voodoo.

Edited: 70 Hz instead of 60

To quote the last post from this forum thread:

According to the support representative, the card detects the monitor's EDID information and outputs the native resolution. By default, the video card will scale the image of the original source up to the output resolution that it's being told to output.

Hmm time to get a 9800 Pro i think.

retropc wrote:

Mau1wurf1977 wrote:

What happens on the VGA port?

Scales correctly, 720x400 60Hz, in DOS and 320x200 games, but i don't want to use the passthrough cable with the voodoo.

It should be 70Hz. Yea you seem to have some issues here.

Can you use a DVI > VGA dongle for the DVI output on the Geforce?

Perhaps your monitor has a button/control panel with aspect ratio settings? my Dell 24 does with a few options like widescreen, original aspect ratio, fill to height, fill to width. That is, the adjustments are not made within the OS but directly with the monitor. the options are well burried inm the options tree and I wasn't even aware of them for a long time.

Mau1wurf1977 wrote:

It should be 70Hz. Yea you seem to have some issues here.

My bad, typo.

tincup wrote:

Perhaps your monitor has a button/control panel with aspect ratio settings? my Dell 24 does with a few options like widescreen, original aspect ratio, fill to height, fill to width. That is, the adjustments are not made within the OS but directly with the monitor. the options are well burried inm the options tree and I wasn't even aware of them for a long time.

Aspect ratio is set to auto. I'm not going to bother with nVidia cards anymore for dos usage. My previous non retro rig had an 8600GT with the same 'feature'. Seems like nVidia was aiming for max compatibility to avoid outputting resolutions a monitor doesn't support.