Yesterday I upgraded display drivers to 378.09 through Ubuntu additional drivers, restarted the computer and everything seemed OK. Today I woke my computer from S3 and got colourful garbled window edges and corrupt title bar. Second suspend & wake changed the look of the edges.
“unity --replace” fixes the issue, but it comes back after every time I suspend with varying severity. For example, in last test only passive window title bars and window control buttons are garbled, but it can make the window borders extremely wide (100px or so) with solid non-theme colors.
Never saw anything like this with 375.26.
Edit: Here is an example of what it can look like http://sarka.kapsi.fi/img/bug.png