After easter egging around a bit ... I did find a path to address my issue. Specifically I could NOT check BOX-D on the 2210 form either. I resolved my issue by going to the STEP-BY-STEP mode and selecting "other tax situations" and secondarily selecting "update" next to the "underpayment penalities" row. This took me into the query sequence to properly fill out the form. After I answered queries and entered my BOX-D tax w/h by quarter the form 2210 was automagically updated. Hope this works for others.
