Have built a small VB.Net app in VS2010.

The connection string to the SQL Server is as follows:

    <connectionStrings>
    <add name="IWSR_DataDownloadWizard.My.MySettings.sqlConnection"
        connectionString="Provider=SQLOLEDB.1;Data Source=SQLServer;Integrated Security=SSPI;Initial Catalog=IWSROL"
        providerName="System.Data.OleDb" />
</connectionStrings>

Within the VS2010 environment AND on my machine, the connection works perfectly, however when I deploy to clients I get an error message of:

[DBNETLIB][ConnectionOpen (Connect()).]SQL Server does not exist or access denied.

I've tried to search the net for solutions, have seen a few instances of people saying to NOT use the Server Name but the IP Address instead (this doesn't work) and some saying to remove the "Provider=SQLOLEDB.1", again this doesn't work.

Can anyone suggest a solution please?

Further information:

Development System is Windows7 using VS2010 Deployment systems are a combination of Windows XP, Windows 2000 and Windows 7 SQL Server is SQL2000 (soon to be SQL2005).

TIA