how do i disable my onboard display adapter? i have a g33 express family chispet/ gateway dx4710-ub301A. tried checking my bios.. but cant find it there. i already put in my new pci-e video card. 9800 GT 512 ddr3. and even added 500 watt power supply. but still my new vdeo card doesnt work. Please help me! thankx!!!