I have a very noticeable transparent glitch in the Unity Dash. It does no transparency at all and instead shows a green to red color transition with black checkered boxes. This is an entirely different visual glitch than the one that affects Intel Graphics Cards. This glitch only happens when I open the dash or the Shutdown dialogs. When the dash is not open, The unity left bar displays as it should with no glitch.

![Green to Red checkered board effect.](https://i.stack.imgur.com/1AWqZ.png)

The computer that has this glitch is a 2008 Toshiba Satellite L355D-S7825 Laptop. The graphics card is a ATI Radeon X1250. This computer also has had very bad graphics performance on Unity ever since Ubuntu 11.10, showing very choppy transitions and animations. I dual boot it with Windows Vista.