Student Information Worksheet forcing unwanted options

Section VI, Line 17 -- TT automatically populates the first column with $10,000, AND I CAN'T GET RID OF IT.  Since my 529 receipts exactly equal the qualifying expenses, I'm now being taxed for an "excess distribution" of $10K.  PLEASE tell me how to fix this.

 

Two other problems with this worksheet:

1) The section under Part VI labeled "Qualified Elementary and Secondary Tuition Smart Worksheet"  dissuaded me from entering any info on the subsequent lines for several hours -- because my info was for COLLEGE, not Elem & Secondary.  PLEASE MAKE THE LAYOUT CLEARER.

2) Part VII - I have checked "Elect the Tuition and Fees Deduction" (the first line 4 [there are 2]), because when I check "elect credit or deduction which results in best tax outcome," my federal and state tax bill immediately increases by almost $1000.