Hey All,
Can anyone tell me how to configure the database while installing umbraco 4.0?

My problem is:
I have two systems say System A and System B.
System B only contains the database ( MS SQL Server 2005). I have created the database(umbracoCMS).
System A has UtilDev Cassini web server installed and I am trying to configure database (which is at system B) in umbraco 4.0.

I tried with
Type: Microsoft SQL Server
Server: System B
Database name: umbracoCMS
Username: user
Password: user

I tried with
Type: Custom connection
String: Integrated Security=SSPI;Persist Security Info=False;Initial Catalog=umbracoCMS;Data Source=system B;


Result: Database connection failed.
I can able to ping System A from System B and vice versa.

Please help me configuring the database. Please let me know if anyone has difficulty in understanding the problem.