Do you get in the 2d screen? or not? Tell us your specs and if you dont get in 2d as well try disambling the full screen optimizations on the properties/compatibility menu of your shortcut (right click on the shortcut)
set g_fMaximumFOV 150 // Limits the maximum amount that the FOV can be increased
set g_fDefaultFOV 80
set g_fViewlimitPitchDown 90.0 // Overrides all A/C viewlimit_pitch_down values from the 3dckpit.dat files, max. 90.0, only higher values take effect