lrd_open_cursor: ERROR, return-code=LRDE2009

I am doing Load testing for a Client Server application and using MS SQL server, COM/DCOM, Windows Socket and LDAP profile. I am using LoadRunner 11.00 version. While replaying the script I am getting an error message “lrd_open_cursor: ERROR, return-code=LRDE2009”

vuser_init.c(29): Error: DB-Library error msg (Number=10004, Severity=9, Function=dbopen):

vuser_init.c(29): Error:     Unable to connect: SQL Server is unavailable or does not exist.  Access denied.

vuser_init.c(29): Error:     OS msg number=5:

vuser_init.c(29): Error:     ConnectionOpen (CreateFile()).

vuser_init.c(29): lrd_open_cursor: ERROR, return-code=LRDE2009

Abort was called from an action.

Do you have any idea about this error?

Thanks,

Ajit