I'm getting the same error - well the path is different, but it says
"Notice: Use of undefined constant _VOTE_POOR - assumed '_VOTE_POOR' in" ... "line 830" and also repeated with line 836.
I have not installed any language files, it says default English.
I am using Joomla 1.5 CB 1.2 RC 3, and CB profilebook (version not given).
I am using it locally, but everything else is the same as the previous poster's problem.
In the profilebook.php file line 830 has
[code:1]$html .= _VOTE_POOR;[/code:1]
Line 836 has
[code:1]$html .= _VOTE_BEST;[/code:1]
Any advice would be appreciated. I really love the plug-in and hate to drop it.