How do I add a Gmail account to my Mail program

Did you try looking at Gmail's Help documents? It's right here: http://mail.google.com/support/bin/answer.py?answer=13275

First off Gmail supports "imap" which will allow you to keep your computer Mail app, and gmail account in sync. I would suggest you setting gmail up for imap instead of POP.

1. Open Mail go to preferences, select Accounts.

2. In the account window in the left pane "Accounts" press the "+" button at the bottom to add a new account.

3. An Account window will appear asking for information, select IMAP for account type, Description put what ever you wish such as "Gmail IMAP" or if you are going to have more that one accunt fro gmail the "User Gmail IMAP", Enter your Name, and your new Gmail address ex. "yourusername@gmail.com".

4. Enter the information for incoming mail. In the incoming mail server box type: imap.gmail.com, Your user name should appear in the User Name box automatically if it is incorrect the correct it, enter your password that you use to access the mail from the web with gmail. Then press Continue.

If all the info is correct it will let you continue, as mail at that point actually goes out to that gmail server and attempts a login with that account and password, if it fails at this point then some info like your user name and password are incorrect. If it all goes well go to step 5.

5. The next screen will be the Outgoing mail, in the Outgoing mail server: box type: smtp.gmail.com, select authentication and put in your username and password for that account like you did on the prev step. Then press continue. Mail will again go out to that server and attempt a log in to very the information. If all goes well then mail will come back with an account summary window, you can then press continue.

That should do it, if it doesn't work post back.

I have followed all these instructions on setting up a gmail account on my Apple 2.4.3 mail, but still get the message "cannot connect to the server". what do I do ?? Thanks.