Where did you download LR 4.1?
AS far as I know, it has not been released...
I received an email from Topaz Labs saying that their plugins would work with LR4.1 and that it was available on the Adobe website. I went to the Adobe site and downloaded the trial version of LR4, which came as the file, LR4_1_S11.exe. My previous version was named LR4_1_S11RC, so I figured this new one was the actual new version. Am I wrong?