Monitor settings

I just purchased this HP Pavilion laptop computer and as I am a professional
photographer, it is important that I can see extreme detail in the images I
work on. I just worked on 14 images in photoshop and sent them to my
assistant to get out to the lab. When she brought the images up on her
computer, she was able to see where I had darkened the black background to
cover the pants and parts of the white flesh showing on the customer I had
photographed. Even though I know exactly where the imperfections and
corrections are, when I bring these images up on this computer, I am not able
to see the detail she was seeing on her computer monitor. Is there any way
to adjust this monitor so that the details are exposed, and thus, corrections
can be made? If this is not possible, I need to find out what laptop
computer works for professional image manipulation through photoshop or other
image manipulation software.
--
blue2lip