Bail, apparently specifying a port in the dbi_connect host doesn't work afterall, I get this error:
[MySQL] DB Connection failed(2005): Unknown MySQL Server Host '127.0.0.1

307' (1)
I have tried in addition using localhost and the actual domain of the site but all result in the same error, and I have verified that my Mysql server is running on port 3307 ...
-Mug