yes. I put in -1, and the line 17 is zero. but on page two it's still allowing the credit. I can't seem to find how to override ...

I want page two of 3800 to show zero as the allowed amount. because of the change in ownership, and the fact that I also have nol's that are limited, i want the allowed credit = 0

if i put the amount that is being computed as allowed as a limitation on the input line we are speaking of, thinking it will end up on line 28 in order to reduce the credit, it still doesn't work through. 

I can make it work by deleting the credit carryforward entirely and printing the page, and the re-entering it...for carryforward purposes, and file paper.