What's wrong with my query string?

Question

Hi, I am using a MS Access 2003 database file to connect to via my C-Sharp application. When I try to retrieve records from the database, I keep getting a "missing operator" error message. Here is my query string. string MySqlString = "SELECT * FROM Backups " + "WHERE (Backups.DATE_OF_BACKUP >= " + this.startDate + ") AND "+ "(Backups.DATE_OF_BACKUP <= " + this.endDate + ")"; The startDate and endDate are DateTime variables that contain dates in the following format: 1/28/2003 12:00:00 AM My biggest problem may be incorrect syntax when using a date value with MS Access 2003. Here is what MySqlString string holds after creating it: SELECT * FROM Backups WHERE (Backups.DATE_OF_BACKUP >= 1/1/2003 12:00:00 AM) AND (Backups.DATE_OF_BACKUP <= 1/28/2004 12:00:00 AM) Any help would be apprecciated! Thanks!