Why are you sending hard copies of your F1099B? There is no requirement to send these forms. The IRS gets copies of thesis forms from your broker.
You may want to see if there is a difference in the tax due. If its only a few dollars, I would wait until the IRS sends you a notice. Or if you are due a refund, decide if its worth your time to file the amended return.
Also, when filing an amended return, wait until your first return is posted. You can check on line at the IRS website under "Get your tax records and transcripts." If your due a refund on your original return, you return is posted when you receive the refund check.
