I'm running Windows XP on an Asus A2500H laptop. I bought an s-video cable to plug it into my TV. In the display properties, the number 2 display is greyed out. If I right click on it and click "attach" it lights up and a check box below called "extend display to this monitor" is un-greyed and selected. After clicking apply everything reverts back to how it was, display 2 greyed out, and the check box unchecked and greyed out. Please help me with this, I was really looking forward to using my laptop on my TV. Thanks.