I just learned something new from MacHelp from Maui podcast. (You are welcome to correct me on this)
PC’s are not good for graphics design as they resolution is typically 96DPI. Printing firms use 72DPI, which is the resolution of a Mac and that is why they are the best tools for designers.
Thank you for your sharing. I am worried that I lack creative ideas. It is your article that makes me full of hope. Thank you. But, I have a question, can you help me?