My friends screen will not show anything

[jv1993]

Hi, my friend attempted to setup a dual monitor but he messed up on something. When he turns on his computer it shows the loading screen but right after that the screen turns black and nothing shows. Any help?

 

[505090]

unplug one of the screens from the computer and reboot

 

[jv1993]

Still doesn't work = /

 

[505090]

what os and can you get into safemode

 

[jv1993]

Hes running on xp 64bit, and he can reach safe mode

 

[505090]

so i assume it works fine is safemode

go to device manager and uninstall the video card when you rebooot it will reinstall and set to default settings