Could it be that your are using an 3rd party theme instead of the Ubuntu default?
If so there has been a discussion about this issue.
See best comments on blog post http://www.iloveubuntu.net/powerful-clipboard-manager-diodon-received-new-icons-daily-builds#comment-754554792
Could it be that your are using an 3rd party theme instead of the Ubuntu default?
If so there has been a discussion about this issue.
See best comments on blog post http:// www.iloveubuntu .net/powerful- clipboard- manager- diodon- received- new-icons- daily-builds# comment- 754554792