Q:

Messaging from ViewModel to View is not handling

I looked through lots of articles about it, but somehow, it is still not working.
In the View, in constructor, i have 
Messenger.Default.Register(this, Constants.MY_MESSAGE, delegate(string s)
            {
                DoStuff();
            } );

In the ViewModel, i have
Messenger.Default.Send(Constants.MY_MESSAGE); 

Thats it, i just need to send a notification to the View, no additional data. But somehow, DoStuff(); never rises. Debugger just moves further to the next line after Send();
Maybe i should force it to deliver exactly to my View? 
Is there any shortcuts/list with tips about mvvm light messaging?

A:

Crap. I spent several hours, trying to figure out answer. Correct sending is 
Messenger.Default.Send(String.Empty, Constants.MY_MESSAGE); 

