I skipped over this poll...
I think it's pathetic that she's losing to candidates that a high majority of Arkansas doesn't even know. What will happen once people get to know them, or a somebody actually runs? If Huckabee wanted to, he could crush Lincoln in this race.
It depends on whether the voters really want someone different or just want Lincoln to know they're dissatisfied with her performance. Once they get to know the Republican candidate, they may decide to stick with the devil they know. (Especially when you consider how third-tier the current crop of candidates are.)