bug v1.4.0 Beta 2

[Acurio - Guillaume Houssay <guillaume(dot)houssay(at)acurio(dot)com>]

When connecting to any database of our server (Postgresql 7.4.7) , I 
have the following message :
"Error : column reference proname is ambiguous".

The consequence is that no tables are visible.

The database is on a Debian Linux server and pg_admin is installed on a 
IBM Laptop Windows 2000.