If it helps in any way I managed to correct the problem by deleting the original icon and once the icon reappears indicating incoming mail I than pin the new icon to the bar. This appeared to fix the issue. The issue also occurred with Transmission and Xchat which may suggest an issue when icons are pinned automatically following an upgrade.
The same solution worked for both xchat and transmission. Can't tell you if it's occurred again as I've now ditched unity and gone back to gnome desktop. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/753602 Title: After Evolution gives notification of new mail a second evolution icon appears on the unity application bar and won't dissapear without a gdm restart -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs