are you seeing such effects as shown on this picture: http://librarian.launchpad.net/1934402/Sound_Juicer1.png
if yes, this bug is a duplicate of bug #38198. -- [Dapper] ATI Radeon 7500 - Buttons pixeled https://launchpad.net/bugs/51501 -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
