Title: Loses all of its data without warning!!
Review: I received the Zire 21 as a Christmas present. It has been just over a month and I am already unhappy with my Zire 21. Twice the unit has reset itself and all of the information I entered in it was lost. What good is a unit that loses your information?!?!?!The Palm support has been no help at all with this problem. Do not buy the Zire 21!!!!
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