I always assume the perimeter around the hole diagram is the boundary of the course. Anything outside that will surly result in a OB ruling. Unlike real golf, were the player determines whether a ball is OB or lost, here the commuter decides. Who knows, maybe some day WGT will give us a 5 minute search option (for 5 credits of course). Regardless, the result is the same...both incur a stroke and distance penalty...which is why I'd like a chance to find my ball (wink).
Joey