Q) If I notice some weird things happening to my drawing such as line either appearing or disappearing from the drawing, or points seeming to be in the drawing but not in the survey database, without any explanation, what should I do?

A) The first and most important thing to do is exit the drawing, then reopen the drawing with the AUDIT button turned on (it is by the Open button). This will check the drawing and the survey database and find if there are any problems between the two, correcting what it can. This may take a few seconds BUT it is worth it. Catching a problem early can save many hours of heartache later.