To manually configure Flight Simulator X: Acceleration for Surround Gaming with TripleHead2Go (for advanced users):
1.On the Windows Start menu, click Run.
2.In the text box that appears, type: %appdata%MicrosoftFSX
3.Click OK.
4.In the directory that opens, double-click the fsx.cfg file, and open it using Notepad (or another text editor).
5.Within fsx.cfg, in the [Display] section, locate the "WideViewAspect" parameter. (You can use the "Find" function in Notepad to make this easier).
6.The default setting is "WideViewAspect=False." Change the line to read "WideViewAspect=True."
7.Save your changes, and exit Notepad.
Taken from Microsoft FSX page
http://www.microsoft.com/Products/Games/FSInsider/tips/Pages/AccelerationandTripleHead2Go.aspx
Hope this helps.
Have a read of this post too if runway lights are odd
http://www.widescreengamingforum.com/forum/viewtopic.php?f=57&t=15048
3 new monitors and a TH2Go for Xmas, wow !
Edit:
Get yourself a Track-Ir if looking around the cockpits is difficult, bloody great gadget really brings FSX to life.
And if you want a flight sim that you can shoot stuff with (ok with a simpler flight model) get one of the Arma2 series, go to the armoury and choose an aircraft.
You may want to edit the config if you can't be bothered getting the points to unlock stuff, but thats easy.
Operation Arrowhead was in a steam sale not long ago for £9.99 , great value .