Job codes & P&L

Hi, I have an existing MYOB accountright file. I have now just set up two job codes - one for the existing activity that has occurred previously, and one for a new job that will commence from today.
First thing I did was go to Lists, and set up 2 Headers Jobs, and then one Detail Job under each Header.
So in the Jobs List, it is showing as:
K1 - Job Header 1
       1000 - Job Detail 1

K2 - Job Header 2

        2000 - Job Detail 2

The next thing I did was go to Setup, and Balances, Job Opening Balances. I entered all balances from the P&L for the first Job Detail number. These can now be seen within the Job Opening Balances screen, and also in the Jobs List screen (as total Income, Cost, Expenses, Net Profit for Job 1000.

But when I try to produce a Job Profit & Loss, it says there is no information to display. 

How can I get the Job P&L to show for Job 1000's opening balances? And of course ongoing, as I need to produce a P&L for the different jobs that I set up.

Thank you