Its me again! the screen is still not how...

Hi thank you for your help, I did what u said but the screen is still not right. The monitor is an old one its a proview 772 from the year 2000 it doesn't have a + -buttons like u asked, it has arrows that point up down left right. The windows are still kind of slanted you can't really tell, but I can and its bugging the heck out of me. This is what it looks like now, you can tell(hopefully) of the slanting by looking on the left side of the window. After uploading the pic to here I can see that you can't really tell what I'm talking about but hopefully you still know anyway. Thank you for your help : ]