What steps will reproduce the problem?
1. Queue up for an arena match
2. Get into the Dalaran Arena

What is the expected output? What do you see instead?
Error

What version of the product are you using?
X-Curse-Packaged-Version: r2292

Do you have an error log of what happened?
Yes, recorded log when entering the arena:

Date: 2008-12-29 21:50:47
ID: -1
Error occured in: Global
Count: 8
Message: ..\AddOns\Cartographer_Notes\Notes.lua line 4017:
   Trying to iterate through notes in an unknown zone: "Dalaran Arena"
Debug:
   [C]: ?
   [C]: error()
   Cartographer_Notes\Notes.lua:3788 IterateNearbyNotes()
   Cartographer_Notes\Notes.lua:4017
      Cartographer_Notes\Notes.lua:3982
   Cartographer_Notes\Notes.lua:4167 object_method()
   ...tographer\libs\LibRockTimer-1.0\LibRockTimer-1.0.lua:289
      ...tographer\libs\LibRockTimer-1.0\LibRockTimer-1.0.lua:227