The color on windows 7 is so blurry? -

ok so i instaled windows 7 on my dell inspiron 1525 and the color is so weird its like all the color are moished together and it lookes like one big mess and i cant figure out how to fix it

either try to reinstall it and if that doesn t work repair it while it s installed and if those dont work call a consultant and see if it s compatable with your computer