I just installed a video card, a radeon ATI with dual HD heads. I have used this card in the past with mixed results. I have used the ubuntu proprietary hardware function to install the fglrx driver but I cannot get the ATI catalyst control tool to work and thus, am getting two mirrored monitors instead of one large connected "big desktop" work space between the two monitors. I am running a 64 bit buildup of 10.04. What can I do to trouble shoot this?