have you seen the Airliner Pilot by just flight?

[jboweruk]

Okay what error message did you get?

You need to actually create an FS flightplan for a start. It HAS to be FS not Navigator or other 3rd party.
ALT HI means you're plane cannot reach the alloted altitude in time ( bit of a misnomer that one as you can edit the value that causes this
from within hotseat, but you will have to alt + tab over to it.)

If that last one is the cause use Alt + TAB to get out to FSHS with FS running still, choose the AC tab, then go to the second (i think) page.
From there you will see some things are in red, these are editable from here. Just click on the name of the item you wish to change ( in
this case Base Vert. Speed) and change it to something like 1000 or so. Then save the change and go back to FS9. Change your plane
to something else. then change back again so it re-loads, then you should be okay.

How far were you trying to fly also, as all airports must be within the Chicago area.

Hope this helps as coupled with FSP you'll have a great time.