Incompatible Display Adapter

Hello all!

Setup: New Vista PC (bargain-rack special - a bare-bones office machine with Vista Home Basic) has a built-in VGA adapter. I want to do the two-monitor setup, so I plugged in my ATI video card as the second video driver.

Problem: When I boot the machine, I get the following error:

Incompatible display adapter has been disabled. At least one display adapter on the system has been disabled because its driver is not compatible with the driver for the VGA adapter.

What I find odd, though perhaps it is not odd to you, is that the internal driver was the one disabled - the ATI card is now defaulted as the main (and only enabled) driver. In Control Panel, it does not say that the drivers or controllers are disabled, but instead that there are problems. Clicking on Troubleshoot does nothing at all.

Ideas?

Let's start with the obvious couple things:

1) Could you provide system specs (something like what's in my signature block)?
2) Did you install Catalyst 7.12? (Drivers & Software Select your system and card)

Good Point! :-)
VIA Esther processor 1.5Ghz
1GB RAM
Vista Home Basic 32-bit

Video (On Board):
RADEON 9250 (Microsoft Corporation - XDDM)
RADEON 9250 Secondary (Microsoft Corporation - XDDM)
VIA Chrome9 HC IGP Family WDDM

When I try to see the info about the card I installed and am using now, it only says "<unavailable>" for all details.

Any other info needed?

What's the card you installed? I assume you know that, since you put it in.

Whoops! You would think so...
Actually, it's a VisionTek Radeon 9250 128MB.
So, I was wrong above - the VIA is on board, the other two are aparently this card.

Actually, let's just skip that. We can probably get by without that, since it's a unified driver. Install the driver from here, if you haven't already done so: AMD GAME! Drivers and Utilities

Also, are you planning on doing this with the DMS-59 to 2-DVI Cable?

Moved to graphics card forum

Actually, I was setting it up to use the VGA cable from the internal controller supplied, and then using another VGA cable from the card. I'm not familiar with the cable you mentioned - are you saying that I could run two monitors from the VisionTek card? The card has a VGA and a DVI socket, and I have both cables if that would work...

Run both monitors from the same card, just disable the internal.