Vista -&&> SQL 2005 Connection Issues.

Hey guys,

A client is running an application called Console. They recently upgraded to Console 2007, which users SQL 2005. All clients on the network can connect to it fine, both XP and Vista.

We have now added another Laptop with Business Home to the network and the Console client cannot connect to the Server. I created a UDL connection for testing and found that from the drop down box under Server I can see all instances on all computers, but when a "Test Connection" is run, I get the following error:

"Test Connection failed becuase of an error initializing provider"[DBNETLIB][ConnectionOpen (Connect()).]SQL Server does not exist or access denied."

This happens on all databases on all servers regardless of credentials supplied. Run the same test from the server directly or another computer on the network, it works fine. This laptop is in the same groups as the other workstations, tried by allow 1433 and 1434 through firewall, tried disabling firewall (windows firewall) altogether. I have tried using DB credentials or AD based credentials that work fine from other PC's.

TCP IP has been enabled through cliconfg

Any ideas?

Cheers