When I initialise the CDU, where do I get the 'SET IRS POS' info from to line select into the relevent box ? Glen

You can go to the next page and get it from the GPS. Henri

How long does the GPS take for you guys to find a position? Hasn't been able to for me.

If you mean the IRS initialization process, it takes 10 minutes in real life, but there is an option in the FMC to speed it up to 30 seconds. But I had the impression that the GPS location on page 2 is instantaneous. Henri

I can't get the IRS to align. Both the 'Align' lights keep flashing and I have the '30 sec quick align' selected in the options menu. The manual says you have to enter Present Position before it will align ? Glen

If I understand the question correctly, you cannot align before you have entered the position into the IRS. You get the position from the GPS on page 2, but sometimes the present position on page one is correct. I am not sure with this aircrarft, but with the Capt. Sim 767 you put the dials directly on "nav" and not on "align", but first you need to have the correct position coordinates entered, otherwise there is nothing to align to. Henri

GPS on page 2 - yes. You can also enter the lat/lon manually from an airport chart that has the gate positions.

How long does the GPS take for you guys to find a position? Hasn't been able to for me.

If you mean the IRS initialization process, it takes 10 minutes in real life, but there is an option in the FMC to speed it up to 30 seconds. But I had the impression that the GPS location on page 2 is instantaneous.

No I'm pretty sure he means the GPS. And no it's not instantaneous. Takes a minute or so, which could be expected. Think of your car or smartphone GPS.