IF you are using the "Desktop"/download software...(neither of you said whether using "Online" or "Desktop" )
The probable solution only applies to the Desktop software:
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If you see a "$0" in a field during the interview....not just a "$"
Whenever you see a "$0" that you cannot seem to change (an actual zero, not just a "$", and only when using the desktop software )...a "Supporting Details" sheet is attached to that entry, usually transferred in from last year, but after the actual $$ entries were stripped out.
solutions
1a) double-click in the field and the Supporting Details sheet pops up and you can either delete it (hit the big red "X"), and now make an entry...or you can use the SuppDetails worksheet to enter your $$....OR...
1b) Put your cursor in the box, and then go to the top menu on the screen and click on <Edit....then <<Add Supporting Details from the drop-down menu. IF the SuppDet box shows up you can either add your entry in there...or hit the Red "X" to delete the whole SupDet worksheet and then make your normal entry.....or...
1c) Put your cursor on the box....switch to Forms Mode...., and enter the payment directly in the worksheet. You can also delete the Supporting Details sheet entirely (look for the REMOVE "X" when it pops up)..once that is done, you can make entries using the interview again..