I'm being asked to pay for my return again
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Interview Errors in TurboTax
Examples of what can cause these errors

Missing your 2010 Tax Carry Forward Data?
TurboTax Online users: Read these steps

NETFILE: .TAX FILE is not in the correct format
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Help me find my .tax file
Find your .TAX file for NETFILE

Industry Codes changed TY2011
Lots of changes and new codes

How to use NETFILE
Step by step guide and Video

Video Guides
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Product updates
Manually download updates to TurboTax

NETFILE demo
Step by Step guide and video