Mail Monitor--double-click load message

Well, I thought that is what it does (load the message in mail reader). I could have sworn it worked before because I thought it was a pain to right-click | load message to open the message in my email client. I wished I could just double-click the message and it would load in my client.

Now it doesn't seem to do anything, just like double-clicking it. ???

I'm almost positive it did that, or at least I was able to do it in some fashion--i'm so confused now.

So, I guess i'm confused about what "load message" really does

thanks