While trying to file, i got an error Unable to cast COM object of type 'System_ComObject'..

[TurboTax-Duncan]

Hi Thank you for using Intuit TurboTax AnswerXchange

I apologize for this issue but it looks like there is a problem with the installation of the TurboTax business on your computer. If you call our help line at 1-866-438-8020 an agent can assist to resolve the problem

Hope this helps