@roberta591 Okay, I ran the report and attached the text document... I hope. Let me know if there's an issue opening it. (Still a little scared to attach that.)
Update: Just to be clear, the "scrambling" is kind of like big pixels all over the screen, and it only happens momentarily while and after I'm saving. It usually goes right away, but sometimes it can leave the text in menus unreadable. This is also for a short amount of time, but it's still obnoxious.
As for the "rainbow" glitch, I called it that because while I was building a house, I painted the ground and after I saved it the path turned into rainbow colors. It stayed like that until I exited the game and came back to it. It also did that to one piece of furniture. And then when I was playing yesterday, it did something similar where it turned a painted path black. So... something's messing with textures or something.
I don't know a lot past the basics of computers. Though my computer on its own (while not playing Sims) is completely fine.
