Set my favorite program freemind on Ubuntu 12.04 64 bit. When you move the chart and when scrolling through the horizontal scroll bar is a problem - "blurred" image (see link) http://help.tulalinux.ru/Выделение_647.png with other programs such problem. Freemind is at my house (also on Ubuntu 12.04 64 bit) and I put some of my colleagues, no problem. Installed the drivers nvidia, the problem remained. Very convenient freemind help decide to abandon it does not want to, but do not work as possible.