Can't See Sims Game Content Even Though It Says The Game is Open?

I am trying to open my Sims 3 game. It says that it's open, but I can't actually see the content. When I go to the corner of my screen where it shows everything that I currently have open, I can see that something is open, but it is just a blue-ish box, no Sims content. And when I go back to my normal screen, even after selecting the Sims icon, nothing opens. I'm not sure how to fix it. I think it is an issue with my display, maybe? I'm not really sure. I can't fix it though, and would appreciate some help! Thank you!