If you had taxable dividends, or Capital Gains Distributions (CGD) , in a mutual fund, it will be reported on a 1099-DIV, not a 1099-B. Dividends are in boxes 1a & 1b and CGD in box 2a.
It does need to be reported. TurboTax will pick it up from the 1099-DIV and enter both in the right places. CGD and "qualified" dividends are both taxed at long term capital gains tax rates.
