Maybe the specialist had you try the following things already...but other thoughts:
1) For windows computer...a "Manual Update"
Manually Update TurboTax for Windows Software (Basic, Deluxe, Premier, Home & Business) (intuit.com)
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The there's a special procedure to clear out some background files that don't normally get deleted with the regular Uninstall/install .
2) For a windows computer...there is also a forced uninstall that clears out Junk:
How do I forcefully uninstall TurboTax for Windows? (intuit.com)
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OF course, you may be running up against the max # of installs allowed...but perhaps if you have two disks, you have two separate codes.
But the second computer might work out OK too.
____________*Answers are correct to the best of my knowledge when posted, but should not be considered to be legal or official tax advice.*
