Zoom in cockpit view

I recently bought a new computer for flight simulation. In both FSX and FS 2004 when in the cockpit view I can only zoom out a short distance. My computer supplier told me how to correct this in FSX by altering the config file. I had to find 'wideviewaspect =' and change FALSE to TRUE.
There is no such command in FS 2004.
Has anybody any idea how to change FS 2004?