Hi Lars -
Nope - made no difference. Both BricsCAD and BricsTurn run as administrator; started BricsCAD first then fired up BricsTurn, drew a Pline in BC then made sure BricsCad V18 was shown in the BT Cad Settings, then chose "Execute". That is when it gives me the "not running" error still.
Is there something else I need to look at, or is there a different name I should use in the Cad Settings for BC?