You don't state your OS
and videocard, so I have to guess.
Given the age and class of 2GHz Celerons your machine likely has a geForce 2MX with 32MB and is running Windows ME
Such a videocard is extremely outdated and FS2004 is no longer optimised for them (rather it is optimised for a card 2-3 generations newer, the geForce 4Ti series).
(if that is your OS
) is generally (also by Microsoft themselves) considered the worst OS
they ever released.
Home is a lot better but a memory hog, and 512MB is the bare minimum to run it smoothly. Adding a highpower application like FS2004 (especially when it needs to do a lot that a newer videocard would do in hardware) will slow it to a crawl.
I'm afraid you have few options available:
- live with it. Try reducing display options until you get a decent result
- get a new PC. At least a PIV-2.4 (not Celeron) with 1GB RAM and a geForce 4Ti4200 with 128MB RAM
- get a new videocard (geForce 4Ti4200 with 64MB RAM would do) and another 512MB RAM
First option is the cheapest of course.
Second option is the best.
Third is a compromise. Won't give you the performance of the second but better than the first at a lower price compared to a new PC
If you want to run the very latest highend games at top performance expect to need the very latest hardware as well (and in case of bleeding tech like what Microsoft uses in the FS
line you won't be able to run it at full settings and optimal performance except on hardware that's not yet on the market as the developer wants it to remain appealing for several years, giving people the option to increase their settings as hardware power increases).