Comment 35 for bug 209520

kalaxy's "trick" does work.
I also noticed that, in my case the problem is only displaying the shared folder/drives.

Example:

smb://3rsys/ in nautilus shows a blank screen, but adding d$ (example of shared drive) or a shared folder name works.. (login window appears and the volume is mounted), without the need of using the "Connect to server" window in "Places" menu. (smb://3rsys/d$/)