The Turbo Tax Federal tax (line 16 of Form 1040) is $3 higher than it should be based on the IRS tax tables. Single filer and taxable income is $50,000. How to correct?

Others have reported the same problem. Please don't refer me to the tax tables. This is a simple calculation that is absolutely wrong. It is not due to Turbo Tax rounding. How can we get Turbo Tax to update the software to correct the calculation?