Comment 3 for bug 755230

Seeing repainting issues on two different computers (single-monitor + nvidia graphics, FWIW). Specifically, I've seen point 3 in the description (I don't use suspend and I haven't seen painting issues at login - I use autologin, though), and other examples:
- Navigating the bookmark menus in chromium sometimes leaves part of the previously-selected menu behind
- Scrolling in libreoffice writer sometimes leaves the "page 3/5" tooltip and/or its shadow behind
- Sometimes nearly transparent notification bubbles are left on screen (that is, the last frame of the fade-out effect is not removed)
- etc..
As indicated by the reporter, forcing a repaint by mousing over highlight-able items, toggling expo, etc cleans the leftovers. Setting to confirmed.