I just got this error on a brand new level one. I accidentally hovered my mouse over a level one character, newly created with no $ and this is the error I get:
Date: 2011-08-04 20:09:45
Error occured in: Global
Message: ..\AddOns\TinyTipWealth\TinyTipWealth.lua line 120:
bad argument #1 to 'abs' (number expected, got string)
(tail call): ?