Chamoeq.

I have gone through the start up sequence several times and it works OK for me.  There is one thing which I should have made a little more clear to you.  When you are ready to start number 3 engine you must click on the number 3 start button and HOLD IT DOWN FOR AT LEAST 6 SECONDS for the engines to start.  If you just ckick on the start button then nothing will happen. You MUST click and HOLD DOWN the button for at least 6 SECONDS.
Try this and see what happens.
John.