This was on before and I noted that the Cleveland Plain Dealer had an aricle with someone from the Board of Elections. They said that the arrows were a problem but that any one who thinks they may have voted wrong can get another ballot. Their first ballot would then be cancelled. They gave the phone number to call.
I couldn't find the absentee ballot sample at the Board of Election's website. But the sample of the regular ballot has no arrows or numbers and the candidates are listed in a different order.
Thanks for the update. I was getting paranoid about potential fraud. It looks like whoever put the arrows clearly messed up and confused people. At least people are on top of this potential problem.