Hello. So this all started when my boyfriend decided to replace a cd-rom drive on his own... decided it was a bad idea and put the orig. back into the computer. Well when he turned the computer back on, every window that he opens including internet keeps refreshing. It's refreshing so fast that the icons keep flashing. When on the internet, I can't even get to a different web page because the window keeps refreshing. The only window that refreshes is the active one. Anyone have any ideas? Much thanks!