mssql server 2008 database connection problem

hello,

i am trying to create a new db connection in 3.0 beta 2 latest nightly build as a jdbc connection with the Microsoft SQL driver but i always get a connection init error:

Can't get the Connection for specified properties; java.lang.Exception: Failed to init connection for drvr [com.microsoft.jdbc.sqlserver.SQLServerDriver], connectionString [jdbc:sqlserver://DBServer:1433;databaseName=Rese;user=User;password=#####]

i am creating the connection with the new wizard and entering the needed data which gives me this connection string:
driver: com.microsoft.jdbc.sqlserver.SQLServerDriver
connection string: jdbc:sqlserver://DBServer:1433;databaseName=Rese;user=User;password=

what do i need to change in the connection string?

thanks
Chris