I am helping a friend get connected with his cable modem and a wireless network. I expect that somewhere along in the process I may have to insert an installation CD for the cable modem service (maybe not), and/or a CD for the wireless network setup. My question is, how do I get the CD to play on a Powerbook using, I presume, OS X? I am a Windows user, not a Mac user. Also, my friend showed me six or seven icons on his desktop that he wants to delete. How do we delete unwanted icons? Thanks so much.