New Hampshire dp-10 error preventing efile. No idea why - doesn't seem relevant.

Form DP-10 is the Interest and Dividends tax return form in the state of New Hampshire.   All New Hampshire residents and fiduciaries whose gross interest and dividends income, from all sources, exceeds $2,400 annually ($4800 for joint filers). In addition, limited liability companies, partnerships, and associations with non-transferable shares whose gross interest and dividends income, from all sources, exceeds $2,400 annually must also file and pay Interest & Dividend tax.  Form DP-10, is due on the 15th day of the 4th month following the end of the taxable period.

For more information regarding this form use the following NH link:

http://www.revenue.nh.gov/forms/interest-dividends.htm