HP P6 Windows 7 Dual Monitor Problem

My brother has an HP P6 something running with Windows 7.
We would like to drive his monitor and his TV BUT
when we get to the screen that has the choice of 1 or 2 monitors
we see only one monitor as the only option.
It has a VGA and a DVI connector on the card.
Is there a way to get the 2 monitor option?
Maybe video card only supports one but has both connectors?
VZGA works fine but we can't get anything from the DVI.

DanL

Source: http://club.myce.com/f3/hp-p6-windows-7-dual-monitor-problem-331295/

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