Dudleian 0 Newbie Poster

I've got an Asrock K7S41 M/B with a Duron 1300 processor and 1400 mbs RAM running WinXP Pro SP3, the machine has just the regular stuff with no cards currently or previously installed. I'm trying to instal a Radeon M9200 128mb PCI video card (with no independent power supply) but after bunging it in when I turn the machine on all I get is a black screen, it doesn't matter if the monitor is plugged into the new or old socket or if the card is in the alternative PCI socket (there are just 2). The same thing happens when I try and put in a Soundblaster sound card or an Xpert Vstream video capture card (both of which worked with my previous mobo) Should I instal the drivers/software first or do I need to change any BIOS settings before I instal the card? Can anyone help please?
Thanks