How to make video card work ?

I have a ATI Radeon 9600 Pro & i inserted it in the agp slot on my mobo then when i put the monitor plug in the new video card plug & turned the computer on , all that comes up is coloured lines & stuff . Can someone please help ?|||did you install the driver software if you don't have it download it at the

http://www.amd.com website nothing wrong with your monitor i own a samsung that was made in 1998 works great after installing the update driver software and update the direct x|||I used to have the ATI Radeon 9600XT card & it worked just fine. Try refitting it. If it still won't work you will need to get a local computer nerd to open it up & have a look. It should go just fine.|||I think you plugged your video card losely. Try to fit it on then reboot your computer.