[Help]Image Search

Im trying to use the library ImageSearch.au3, but it seens that doesnt work on all machines. I did my script to compare some images, and was working then I tried to change and test the same script on other pc and doesnt recognize the image. I did some search and people said that windows have differente color palletes for every computer. Can someone teach me how to apply imagesearch in universal cases ?
Thanks

you cant do it universal. most pcs have different screen resolution, so you would have to add a picture for every resolution

I tried on pc with the same resolution, still not working x-x
I cant take a image for every computer since is more than 100 images in my script. The problem is just the resolution?

i dont know any other limitation. is imagesearch maybe returning an error?

It doesnt return an error, just dont recognize the image. I dunno why but the image captured in computers are differente. I tried to put both computers in 1280x720 resolution, but in one monitor the image that I save is a little bigger than the other, and the border of some images have some irregular shape. How could both computers have the same resolution and the image that show in screen can be different?

different windows style? like when you rightclick ur background and change to eg old xp style :D