OK, I'll re-phrase my words:
When you first set up your computer, where did you get the drivers for your video card?
If your video card drivers came from Windows Update, you have the MS drivers, which do not work well for UFO: AI and can cause problems.
If you get your video card drivers from the website of the company that made your video card, those would be a much better choice.
Example: If you have an NVIDIA video card, it would be best to go to NVIDIA's website and download drivers directly from there - do *not* get them from Windows Update.
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BTW, not knowing English as your first language does *not* make you "dumb," we have plenty of forum members here who don't know English as their first language, and some who only know a little. If you have difficulty feel free to ask any of us to repeat something and say it another way, or tell us what language you're good at and we'll try to help you. (Myself, I personally speak English first but I also know a little German/Deutsch).