In PLD fields Repeating problem

hi all,

I have an issue regarding PLD's but dont give any URL's like http://cpsn-channel.sap.com i searched that but i did n't get any solution Regarding problem that is when i am creating Good's Receipt P.O in that i am modifying that PLD report in that has our Customization for Client . when ever i am keeping Field like in "Purchase Order"(OPOR) but in that one field like "TaxDate" when i am adding in my report its previous like data present in Repeative Area what ever fields in their its Repeating ie whenever i am adding fields above what ever i said ie "TaxDate"(OPOR) its repeating Can any tell me regarding this issue with more Explanation asap.

Regards

ANAND