Possible Duplicate:
How can I use a DVI splitter cable on 1 DVI port?
I have a Dell desktop with an ATI Radeon. The graphic card has a single DVI output and I am wondering if I could connect to it a second monitor to have an extended desktop (not a copy of the main monitor). If I buy a Y-connector will it work or I have to buy another graphic card with a dual output?
Thanks