ERROR TIMEOUT EXPIRED

HELLO ALL

IM AM DEVELOPING WINDOWS APPLICATION (VB.NET2005).

I HAVE BACK END SQL SERVER 2000.

MY OS IS WINDOWS XP.

NOW I HAVE A ANOTHER MACHINE , IN THAT I INSTALLED MY APPLICATION.

NOW WHEN I LOGIN INTO MY APPLPICATION, IT DISPLAYS AN ERROR

Timeout expired. The timeout period elapsed prior to completion of the operation or the server is not responding.

WHAT WILL BE PROBLEM IN THIS

PLEASE HELP ME.

ANOTHER THING IF I CHANGE DATA SOURCE NAME AS SERVERSYSTEM(IT IS THE NAME OF OUR SERVER 2003) IT WORKS FINE

THANKS IN ADVCANCE

This error is frequently caused by an incorrect server name or instance name in your connection string. Check that.

By the way, this forum is dedicated to SQL Server Notification Services. You'll find better / more answers in a forum that more appropriate for your issue.

HTH...

Joe