Every 1099-B entry imported from ETrade shows up incorrectly with Adjustment Code N

I imported my consolidated 1099 from ETrade, and every sale is incorrectly coming up with Adjustment Code N.  "Smart Check" fails, because Adjustment Code N requires an adjustment amount, which, of course, there is none. It will neither let me remove the adjustment code-- it just sets it back when I clear the textfield-- nor will it let me set the adjustment value to 0, so I'm stuck.  There are hundreds of lines in this 1099. Any suggestions?