Re: Textures look awful in fullscreen??
@marunouchisdstk Please take a photo (with your cell phone camera) of your in-game settings in fullscreen mode and post it here. As long as it's reasonably legible, e.g. I can make out the resolution, it's fine.
Please also run a dxdiag and attach it to a post.
https://help.ea.com/en/help/pc/how-to-gather-dxdiag-information/
And go into Documents\Electronic Arts\The Sims 3, open deviceconfig.log, copy the two lines under Ratings Info (right at the top), and past them here.