hell all i have bin tryin for hours now tryin to set up a dual screen by usein my avi dvi ports but i cant detect the 2nd moniter witch is pug in to the dvi port, both moniters work in the avi port and i event tryed both wires as well so i know they both work, i know my a way around a comper but i dont know too much bout the teck so i dont know if next bin info has anything to do with what i need help for >> , i do see on device manager that PCI serial port and the PCI simple Communications Controller Unknowen i tryed to update drivers and they still wont install
im running windows 7 with all updates
on a dell optiplex755 4gb
amd radeon hd 6570
any help would be great and im sorry if my spelling isnt too good
thank u dan
are you able to see the two monitors in the catalyst system? try to turn them on one at a time if they are seen in the catalyst.