dangerous10671 0 Newbie Poster

after i install the card and swithched the pc back on the screen is fine for about 5 mins then goes multi coloured then the monitor turns itself off or sleep mode .once i reboot it the monitor stays off.the card is a ati raden 9550 256mb 128 bit dvi tv and my motherboard is a epox with chipset p4m266a-8235,via p4x266/a can someone help please...