Referring back to the previous problem of linking tasks. I checked as Thomas had suggested.The clock time which I have set is 10am to 7pm. However the tasks are from 8am to 5pm. Some tasks are starting at 10am even though the predecesser finishes at 5pm while some task are starting at 5pm when the predecessor task finishes at 5pm!!I have set the project on auto schedule. Any ideas how to rectify this??