I just received a new batch of digital photos which i had 'tweaked' before i sent them to be printed. The printed colors do NOT match what showed on my screen. I understand I may need software like Spyder2 to calibrate the colros on my monitor. The question--i work with a laptop w/o separate monitor. Will this software be effective on my laptop screen? It seems logical that there should be no difference, but then software is often not logical.