last night i made my first change to an addon ever.  Prat was throwing some error about some function call that no longer exists.  GetNumRaidMembers or something.  The standard error message is also kind enough to tell you what .lua file the error is in.  so i opened that file up, found the function call in some function returned false if this GetNumRaidMembers returned anything.  I just made the function return true regardless, and voila! 

I'm sure the Prat Master has already fixed that one, but it allowed me to raid for the night at least!  now i'm not so scared of .lua editing either!