the following odbc error occurred: error: [microsoft][odbc driver manager] data source name not found and no default driver

hi when i try to open nav 5 , i get the following error…its ok in other users… we are using sql server 2005

the following odbc error occurred: error: [microsoft][odbc driver manager] data source name not found and no default driver

your windows component is having an issue…nothing to do with nav 5.