I clicked on "as related question" but I do not see any indication of a link to original post here. So here is the link
Well the suggested solution there is not a solution more an indication of a bug.
Indeed this happens on locked threads, but that is also the scenario that Ed Sanders is describing.
And I find myself in the same setting, I actually searched in the forums and found a good answer and wanted to vote it up. As i assume this will help others identify the solution, and help Vivek Singh to know his answer was well received.
When i try to vote up an answer on a locked post i get the error message (in upper right corner) that I do not have the "reply permission" for this post.
Well I don't want to reply, I just wanted to vote up, the vote rights should newer be locked.