Tularis

Hello, I have recently bought a LG “W2261VP” monitor and have noticed something strange. When in games with lots of action, I get what I can only describe as “Scan Lines” going down the screen (see photos). So far I thought this was just the way this monitors works being only 60hz. As in the past I have had only 70hz+ monitors. But when I alt-tabed out of Bio-Shock I noticed that it disappeared. Is something wrong with my monitor? Have anyone else seen this issues and does it have a name so I can Google it? All the games are the set to the native 1080 resolution GPU is an Nvidia GTX 460 (non sli) Connected via DVI to DVI Photos: Strange Scan lines: http://i868.photobucket.com/albums/ab248/petersgc/IMG_0246.jpg http://i868.photobucket.com/albums/ab248/petersgc/IMG_0246norm.jpg After Alt Tab: http://i868.photobucket.com/albums/ab248/petersgc/IMG_0247.jpg