Database connection is not working anymore

I just installed the deprecated Server Behaviors on my brand new Dreamweaver CC, since I use a lot PHP/MySQL stuff

Site configuration is ok: I did it hundreds of time before, and you can see the screenshots below (sorry, it's all in Italian but I'm sure you'll get the idea)

Now, when I click to create a new recordset, I get a "*** No table found" message in the "Table" dropdown:

Then I go to review my Connection (parameters all all correct):

And clicking on "Test" I get this error:

That is the same error found here: http://forums.adobe.com/thread/901283

The site is perfectly working: typing "http://puntoedilesrl/" in the browser I see it shining

What I tried so far:

1. Delete and create the site from scratch
2. Delete the WinFileCache file from C:\Users\Ivan\AppData\Roaming\Adobe\Dreamweaver CC\it_IT\Configuration
3. Manually import the files in the _mmServerScripts folder from another site, changing the path in the _notes/dwsync.xml file
   in this case the file gets DELETED when I try to test the connection

Great improvement, Adobe!
I got in touch with Adobe Online Chat but... "Sorry, you have to talk to a DW Specialist, you'll find him in 4 hours"

Any help, please?
Thanks in advance