There's a list of possible reasons and solutions for the missing arrows
listed here:
http://www.contextures.com/xlDataVal08.html#ArrowsNotVisible
> my data validation in the series of cells i "validated" with a list is there,
> when i check through edit>goto>special>data validation, but the drop down
> arrows don't show in that series of cells. what am i doing wrong?

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Debra Dalgleish
Contextures
http://www.contextures.com/tiptech.html