this started about a week ago when my sister installed a dell computer to our PC and i turned on the computer and the screen started to flash every 5 seconds and the programs on the screen would disappe aswell at the bar at the bottom then it'll come back this would go on ever second. its veryy annoying because its hard to consentrate and whenever i open up a document and the screen flashes it will close the document so i don't really know what do please help
oops i meant to say she installed the dell printer..not the computer
oops i meant to say she installed the dell printer..not the computer