i have just assembled new computer. it is ok with crt monoter with any resolution setting. but i just bought a packard bell tft monitor in which display flicks with all resolution specially in 800 by 600. if i change it into other setting 640 by 480 or something else it works for a while and starts flicks again. i have got built in graphics and its gigabyte motherboard with 256mb memory amd athlon 2800. help me please