I'm running Ubuntu 14.04 on a new Toshiba Satellite.
Everything seems to be working OK, but I'm having some graphics related issues. Occasionally in Unity, the menu bars of my apps will turn translucent and will only become solid again if a drag and drop or maximize and minimize the application.
Even more troublesome is that occasionally there will be random missing letters in all of my applications (in the toolbars and menus), which doesn't seem to go away until I log out and then log in again.
I've tried changing the default font with Ubuntu Tweak Tool, but the result is the same. I'm not sure how to go about troubleshooting this issue. Any ideas? Thanks.
Example: