Mechanism Force Balance Analysis

[merka73]

Dear all

I'm trying to understand the force balance analysis type of Pro/Mechanism.
I created this simple example but I’m not able to find the right joint reaction forces (it’s always zero).
Please, could you check where I’m wrong?

Thanks

PS: Donwload the file Reazioni_vincolari.zip from

http://www.mediafire.com/?ynygyqdzttf