Form 1099-B differs to Turbo Tax imported information

I have imported automatically the information into Turbo T ax regarding my form 1099-B. However, when I compare my form 1099-B to what Turbo Taxed sourced from my broker-deal, the information is slightly off. I don't want to manually input all the detail from each one of the transactions as it is a long list. What should I do in this case?