When in the 2D cockpit you can only look straight ahead.
If you would like to be able to pan the outside view then add 'pan_in_cockpit_mode=1' under [CONTROLS] in your fs9.cfg file.
Just remember to hit the space bar to set the view back to center while flying. This does work in FS9. Dont know about FSX. If you dont like the effect,you can either delete the command,or change the '=1' to '=0' .