What steps will reproduce the problem?
1. Error comes when wow starts after the 3.0 patch

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

What version of the product are you using?
r79529.13

Do you have an error log of what happened?

[2008/10/18 13:15:56-2894-x1]: Cartographer_Notes-2.0\Notes.lua:3427 attempt to index field 'externalDBs' (a nil value)
LibRock-1.0-90292 (LibRock-1.0):2594: in function <Interface\AddOns\LibRock-1.0\LibRock-1.0.lua:2557
LibRock-1.0-90292 (LibRock-1.0):2715: in function <Interface\AddOns\LibRock-1.0\LibRock-1.0.lua:2710
<in C code>: in function `LoadAddOn'
Interface\FrameXML\UIParent.lua:991 in function `UIParentLoadAddOn':
Interface\FrameXML\UIParent.lua:241 in function `CombatLog_LoadUI':
Interface\FrameXML\UIParent.lua:389 in function `UIParent_OnEvent':
<string>:"*:OnEvent":1: in function <[string "*:OnEvent"]:1>

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Please provide any additional information below.