Comment 103 for bug 1292830

I have found a new work around which is quick and doesn't require a reboot as I have this issue when resuming from suspend on my Asus G751 laptop with nvidia graphics card. Here is the workaround:
1. Install the "unity tweak tool" which can be installed from the "Ubuntu Software Center" .
2. Then each time you have the big, thick borders on windows just start up the Unity Tweak Tool and go to "Themes" and load another theme (the thick borders are now gone). Then you can go back to your original theme if you want to by using the tweak tool by just choosing your default theme (the thick borders are also gone on that theme as well now).

One other thing which I did just once but I don't think is required for this work around to work is I put some css which clears window-frames in unity into the gtk config directory as per this thread (see the answer by pst007x):

http://askubuntu.com/questions/360598/13-10-black-borders-black-terminal