Ubuntu 13.04 is the latest distro from the canonicals . If you are currently running It , you might have noticed that there is slight graphics problem which is related to blur in the dash panel & whenever you attempt to shut down the computer then the transparency of shutdown dialogue box there is blur image.
Follow up this simple steps to get rid of this problem .
Here is some screenshots of the above problem.
Here you can notice a small square type blur under shut down dialogue box
In this , you can notice under the dash panel , under the hood , left side of the bottom of dash you can notice a small blur type thing .
1. Install CompizConfig Settings manager .
sudo apt-get install compizconfig-settings-manager
2. Open CompizConfig Settings Manager -> Select Ubuntu Unity Panel .
3. Select Dash blur & Set it to No Blur.
4. Problem is fixed .
If you have any query or suggestion , leave a comment below !