Your PowerBook or iBook is a constant companion in your on-the-go world. Who has time to thoroughly research all its secrets? Sometimes you just need quick answers, and this compact, full-color guide is packed with them. With it in your laptop bag, you'll always be prepared to get out of a jam, secure your data, configure Internet connections, synchronize files, and make your portable Mac even more efficient in dozens of ways. * Save time with portable function keys * Improve power management and choose portable power solutions * Select the right backup method * Use iChat AV, audio conferencing, and Voice over IP on the road * Access your LAN remotely * Fix problems with permissions, files, applications, startup, and more