Need help. After installing 10.2.3 which has updated my Print Center to Version 2.2 I have discovered that firstly the Default Print Center Icon is missing showing the standard paper, brush, pencil icon. Also when Application open does not show Icon in Dock. Also when I open App. All default icons are missing except customise. How do I fix this. I have reinstalled Print Center but to avail. I assume I have to replace something within the library folder but I haven't a clue what. Please help.