I have a Dell Optiplex 780 computer (using a AMD Radeon 3450 if that helps), which I connect to my monitor with a DMS-59 splitter, to split it into 2 VGA cables.
When booting into BIOS, both monitors display the BIOS screen, and even the windows (7) loading screen is shown on both monitors, however, when windows actually loads up, one of my screens does not show an image, just a black screen.
Both screens are usable when used as just a single screen, it is just when trying to set up dual screen that I have run into this issue.
Can anybody help me work out how to make my second screen usable in Windows?
Thank you very much