I have a Radeon 5450 which has two outputs, and I'm using both of them. All 5450s have a third output, but some of them have an HDMI output, and some of them have a DisplayPort output. The DisplayPort output can be used to run a 3rd monitor with a certain adapter. Mine has an HDMI output, so no dice. But, my computer also has an integrated video output that is turned off by default. Can an integrated video output be used in addition to a videocard to support 3 monitors?