Please explain in, great detail, your exact step by step process. Again, in great detail, what are the "several option" you've tried that have not worked? Provide screen shots of your entire work space and render settings.
Nobody can tell you anything without details.
Is your work area set to include the first few seconds?
Are you still facing this problem? If not, let us know how you solved it. If so, please let us know so we can assist you further.