BB Curve :: Invisible Emails On 9320

I've been receiving emails for the last few months or so, the emails would go to the "messages" application and the sms/mms would go to the "text messages" application. i don't know what i did yesterday, but suddenly only txt and mms messages appear in both applications. my emails are nowhere to be found. I still get the little enveloppe at the top telling me i've received some new emails and can access the latest mesgs by clicking on the top banner (with the reminders) but my inbox has virtually disappeared. Every time i bb click when the msg app is open, i get layout options, not the app's options does this sound familiar to any one here? when i try to open "inbox" nothing happens.