Here's how. Every mail client is a little bit different, so we can't show you every way to set up Gmail, but in general, it should be pretty similar.

How to Set Up an Existing AOL Account On a New Computer. The AOL desktop software, available for all AOL members, includes a feature-rich browser, enhanced search, email and Instant Messenger.

How to Enter Setup on an HP Computer. Businesses using HP computers may need to retrieve information about their computer or make changes to the system that you can't change through Windows.

Setting up your MobileMe mail on a third-party email client allows you to access your mail messages without having to log in to me.com.