How to put a picture on the center of the screen?

Hello!

I have a strange problem! On one computer MediaLab presents pictures properly on the center of the screen, while on another computer pictures are shifted to the upper left corner. The resolution in both computers is the same. What should I do?

Have you checked to see if both machine are using "large fonts" in the Windows Display settings?

Thanks a lot! It was very helpful! I have changed it to small fonts and it helped!