When I'm adjusting my many icons and shortcuts on my desktop, often, particularly when I change resolutions, all of the icons will bunch together in the upper left corner of my screen, requiring me to rearrange them again. As I'm dragging them to the right locations, often the mouse travels across the screen, but the image of the icon has frozen part of the way across. It has transparency. I hold my mouse in place waiting, then after some 20 to 30 seconds, the icon snaps into the new spot where my mouse cursor is positioned. Is this a video card "overload" problem? My video is on-board, as delivered in the machine. Should I consider replacing this on-board video or do I have another problem? It's been this way since new.