How can I login to my gmail account on my desktop

Make sure you are logging in with your @gmail.com credentials and that you previously had an email account. By that I mean, you can greate a google account that doesn't have a gmail account, thereby allowing you to login to google, but not an actual gmail account unless you have one setup. I have multiple google logins and only one account actually has a gmail email account.

have you signed off your Gmail on your
tablet? if not,try that first, then go to Gmail.com
onactual computer and sign in, see what happens.
maybe the computer needs an update to
download gmail to your computer. look into whatever you can.

-Check if you have locked your CAP.
then try your password again.
-Did you type your email properly?
if not then well, you should type correctly.

Open a Web browser window.
Click the address bar and enter "gmail.com."
Press the "Enter" key.

Enter your Gmail username and password in the indicated fields.
Check the "Stay Signed In" box to save your username and password for future logins.
Click "Sign In" and wait for your Gmail account to load.
Mobile Phone
Press the "Menu" key on your mobile phone and click the "Browser" icon.
Click the Web address bar and enter "gmail.com."
Enter your Gmail username and password and click "Sign In."
Reset My Gmail Password
Google introduced Gmail on April Fool's Day in 2004.
The company first gave out 1,000 accounts to Google employees, friends and family members to test out the new email system.
Now, Gmail is a common and popular email application for users around the world thanks to its ease of use, high capacity and wide range of functionality,
Sign in to your Gmail account with your user name and password.
Click "Settings" in the upper right-hand corner.

Click on "Account and Import," then click "Google Account Settings."
A new window will open.
Click "Change Password" under "Personal Settings."
Type your current password, then type your new password.
Type the new password again for confirmation.
Click "Save."
http://mail.google.com/support/bin/answer.py?hl=en&answer=6567

This page will show you a few ways you can login to gmail with multiple accounts. Check this out

http://www.xinz.org/mobile/multiple-gmail-sign-in-gmail-login/

most likely just a broken light globe, try replacing that first, second it could be a faulty temp sensor switch.
But i do not think it should light up when you turn the key on. only when the engine gets over hot.

Menu>Messages>>>Email>>Settings>>New Account>> Add>> Account name>> Connect using>>(Chose your ISP)>>enter email address>>select Connection type as POP3>>incoming server address for the mail you want to configure (ex yahoo= pop.mail.yahoo.com, google: pop.gmail.com) username: (yahoo or gmail login id)..>> Password( for you account)..>> outgoing server (yahoo : smtp.mail.yahoo.com or for gmail: smtp.gmail.com) please specify your login credentials again, then port number is 110 and 25. should work.