help startin normally

When starting fs04 the game show this

<<<SCENERY.CFG file error.Invalid remote scenery path in scenery area.001.click OK to continue>>>>

and not only for area.001 but a lot of areas .i'dont know what's the problem because every file is installed(extracted manual).
p.s. the games start and i can play but the terren is like fog. i't's all brown.

Help me please!
Thanks.

this happend to me once.......just reinstal fs2004