Several weeks ago I built a new computer using an ATI 4850 graphics card. I had it set up for dual monitor and from the start there were no problems making it work. It is set up for extended screen.
Yesterday a hard drive problem forced me to format and reinstall Windows XP, along with all the various drivers for the mother board and graphics card. Since then I have been fighting to get the dual monitor configuration working again with no success.
Both monitors do work and display the same information during system boot or when I'm in the BIOS. But as soon as Windows XP starts up the second monitor screen goes black. It is still getting a signal as the light in the power button is still green. I can move the mouse toward that screen and it doesn't stop at the edge of the main monitor, so I presume that it is working, but the display is just black.
Using the Catalyst control panel I can see that both monitors are recognized by their model number. When I click on the Identity button a large 1 appears on the main monitor as it should. I've double checked the resolution setting for the second monitor and everything looks correct. I'm just not finding the cause.
Can anyone offer any other ideas for tracking down the problem??
Thanks,
Jim
Yesterday a hard drive problem forced me to format and reinstall Windows XP, along with all the various drivers for the mother board and graphics card. Since then I have been fighting to get the dual monitor configuration working again with no success.
Both monitors do work and display the same information during system boot or when I'm in the BIOS. But as soon as Windows XP starts up the second monitor screen goes black. It is still getting a signal as the light in the power button is still green. I can move the mouse toward that screen and it doesn't stop at the edge of the main monitor, so I presume that it is working, but the display is just black.
Using the Catalyst control panel I can see that both monitors are recognized by their model number. When I click on the Identity button a large 1 appears on the main monitor as it should. I've double checked the resolution setting for the second monitor and everything looks correct. I'm just not finding the cause.
Can anyone offer any other ideas for tracking down the problem??
Thanks,
Jim