i have and ipad-1. i have set up a regular yahoo email and a business yahoo email account. i checked the business account as the default account, but the default when i access is always the regular acount. there is no visual indication of the two accounts on the top left corner of the mail account to let me switch. HELP..

Go to Settings > Mail, Contacts, Calendars > Default Account

Open each account's settings and give it a different Description. Depending on how you are accessing the account, either the mail list's title or back button will have the account's name in it. Exceptions are if you've got the All Inbox or VIP folders selected.