Cannot Connect To Remote SQL Server 2008

Hi,I have a C# web application trying to connect to SQL Server 2008.My connection string is:"Integrated Security=SSPI;Persist Security Info=False;Initial Catalog=XRS;Data Source=MTI-JBPAGA"My SQL Server 2008 has already been configured to accept remote connections.I always get the "SQL Server does not exist or access denied." error.Can someone assist me on this?Thanks!

can you check if you can connect to SQL server 2008 using simle ODBC test at operating system level ?
If you are not encountring any error messages doing the ODBC test , probably your connection string may have some semantic issues.
-Sat