I recently acquired a second monitor for my PC and I'm trying to set it up to work in unison with the Monitor I already have.

Basically, when obtaining the second Monitor, I was also supplied with a DVI cable, which the actual monitor does not support, whereas my graphics card does. From there, I purchased a DVI to VGA Adapter in a hope I would be able to GET it all to work. It however, does not.

I've tried swapping the monitors over, to no success. I've also made sure than the native resolution and REFRESH rate has been set for the monitors before switching them on, via CCC.

My current set up looks like this:

Monitor > VGA Cable > AGP 2600HD Pro VGA Port [Working]
Monitor > VGA to DVI Adapter > DVI Cable > AGP 2600HD Pro DVI port [Not Working]

Just to note, the PC does actually detect the second monitor, I however, am unable to get it to display anything in either Cloning or Extended Desktop modes. I have also already tried updating my drivers.I had a similar issue with my new 42" screen when I first got it. The screen had VGA and HDMI inputs and my video card has only two DVI ports. I ordered a DVI-HDMI cable, but in the mean time I had to work with what I had, which was a VGA cable to the TV plugged into a VGA-DVI adaptor at the computer's end.

What I ran into was the exact same problem you're having. I had a lot of trouble getting it sorted out. In the end, it had something to do with the video card correctly IDENTIFYING the screen through the DVI-VGA adaptor. I did manage to get it working eventually, but only at very low resolutions (nothing over 1024x768) and at 50Hz refresh. The QUALITY was very poor. If I increased the resolution or the refresh rate, the screen would just go black. When the DVI-HDMI cable finally came, everything worked fine, the computer was able to correctly identify the monitor, and I was able to adjust it to just about any resolution and refresh rate with great quality.

Does your new monitor support any other connections other than VGA? Do you know the model number of this new monitor? (Can usually be FOUND somewhere around the front or on the label on the back of the monitor.)Quote from: Conjecture on May 06, 2010, 01:19:18 PM

My current set up looks like this:

My current set up looks like this:

Monitor > VGA Cable > AGP 2600HD Pro VGA Port [Working]
Monitor > VGA to DVI Adapter > DVI Cable > AGP 2600HD Pro DVI port [Not Working]