I have had the same problem. Created and saved my return but unable to reopen the return. Tells me the file is corrupt. I uninstaller and reinstalled the software, still no luck opening the file. Started a new return and saved it twice in different locations. Same problem again, not able to reopen, Turbotax claims the file is corrupt.
I spoke with very nice people at tech support who unfortunately did not have a solution. They promised to email but never did.
Here is the solution: I called Costco and received a full refund. The amount of time spent trying to resolve this problem defeated the point of using this software. It is faster and easier to file manually. Really, if your income is documented on a W-2 and you have your 1099-INT, 1099-DIV, etc. it's really not that difficult. If your income is not in the stratosphere you can use the IRS free file. Google it. Don't waste time and money on Turbotax.
