Recently I switched to the new monitor and graphic card - DELL U2312HM and GeForce GTX 550 Ti. I have problems with screen tearing (like in this picture from Wikipedia). Usually it is somewhere in upper part of the screen. Mainly happens in videos (in flash videos tearing heavier). In games all fine, except in-game videos (sometimes even videos built on game engine), but gameplay itself is clear, even in very fast actions. Connection with DVI. Problems both in Linux (Debian GNU/Linux, openSUSE 12.1, Linux Mint 13) and Windows (Windows XP, Windows 7), with various driver versions. 1920x1080, 60Mhz. How can I resolve this?