I WAS USING MY ON BOARD DISPLAY ON MY SYSTEM WHEN I PUT IN THE GRAPHICS VARD AND UPGRADED MY SYSTEM FROM ATHLON XP 2000 TO 2600+ MY GRAPHICS CARD WORKED FOR A WHILE AND THEN STOPPED WORKING, I TOOK IT BACK TO SUPPLIERS GOT ANOTHER CARD IT WORKED FOR A WHILE AND I GOT THE SAME PROBLEM AGAIN. TOOK BACK AND THEY TESTED IT WORKED AND WHEN I BROUGHT BACK HOME, I GOT THE SAME PROBLEM ON BOARD DISPLAY WORKED BUT GRAPHICS CARD WON'T WORK. ONBOARD DISPLAYS WORK WHILE THE GRAPHICS IS PLUGS IN, AND IF I LEAVE THE SYSTEM FOR A DAY OR TWO AND PUT IS ONE THE GRAPHICS CARD WORKS AND AFTER A WHILE IT WON'T WORK. PLEASE HELP. THANKS IN ADVANCE.