setting database location

hi...... i need some help on setting database location at runtime in crystal reports.my database is in folder where my application lies.problem is that i when ever i have to move my applicatoin with database to other drive of same computer or tu other computer.. i have tu change again the connection path of crystall after opening the report in visual studio and editing it..i don't want so. i want to set the path of crystal report connection so that i have no tu change connention path every time...as i set my path for oledbconnection like application.executepath+"\mydatabase.mdb" how tu do it for crystal reports............plz help me urgentaly in this regard