After you file

fore1963:
Did you print, sign, and mail the return?  TurboTax does not mail it for you.
How long has it been since you filed by mail?   And are you due a Federal refund?

If you are due a Federal refund, then about 4 weeks after you mail your paper return, it should show up in this "Where's My Refund" tool at the IRS website:
<a rel="nofollow" target="_blank" href="http://www.irs.gov/Refunds">http://www.irs.gov/Refunds</a>

Normally if you file by mail a paper return that is due a Federal refund, it takes approximately 6 weeks to get the refund if you chose direct deposit.