My father just put in a ATI Radeon HD 5800 Video card into my computer (I'm running windows 7 btw.) I had two monitors plugged in but I misplaced my power chord for one. While it was plugged my main monitor which is an ACER H243H was all glitchy and whatnot. Lines would flash as a new page would load. I unplugged my other monitor and if fixed it. Now i found the chord and hooked it up and that is a LG L1732TQ. Now that monitor is all glitch when things load. Like my background is on a shuffle of my musics album art and when ever it changes or i load a new web page is glitches out. What could I do to stop it?