OziExplorer

Hello - firstly try re-installing OziExplorer software - I assume you are using latest version available from website? If not get it as the version you have may have bugs. I recall having similar problem but can not remember how I solved it ..but installing latest version should be a fix. Changing the various datum options in OziE configuration will have no effect on manually placed waypoints (ie clicking on screen) as they should be placed exactly where you click (unless bug in program or install) – different story if you are downloading data from GPS. If you are entering co-ordinates manually (ie by creating waypoint and then editing co-ords) makes sure datum on edit screen matches datum of supplied co-ords.

If you are using Name Search database expect some minor discrepancies depending on source of data - maybe you should state source of data so opinion on accuracy can be passed. Also clarify “quite a bit away” – 100m, 200m, 2km? If it’s within 200m I wouldn’t be too concerned - depending on source and target point i.e. towns are bigger than 200m so being 200m out is no big deal– trig points on tops of hills should be much better.
Cheers
Greg