Click the coin on the little bar bottom left of campaign screen then click the trading province you want to check , It will give you the trade income for every province connected to the one you selected. Do a simple test make 3 ships find a nearby port to your province which has a merchant, put 1 ship in the 3 sea lanes between you click the coin stack then the name of your province and you will see if its a bug or not, Remember your province must have tradable goods like silk or furs

[This message has been edited by Swoosh So (edited 10-10-2002).]