Thanks for the help guys! I didn't explain it too well, lemme see if I can do any better...
I had Seasons installed a while back when I had a crappy graphics card. I uninstalled it a couple weeks before I got a new card. I had the new card installed, and then, without Seasons, I got good graphics and 1024x768. Then, I reinstalled Seasons, and 1024x768 is gone.
In other words, I got a much better graphics card (waaaay better than my original one), and now 1024x768 is gone.

I don't want to uninstall Seasons, but I definitely hate the small graphics. :| I guess I'll uninstall unless somebody has a solution.