Release amount Exceeds the Sales Agreement amount

Hi all i have made a Price list named as YounuPrice List in which the price of the item coming from the item price defined in the defination of the item .....now when i am creating the Sales Agreement and calling the price list in that sales agreement and then when i am tring to enter the Maximum & Minimum amount agreed so system wont permit me to do that and it and hence the amount in the sales agreement is 0 .......... when i creat the release (sales order) from this agreement and in the line when i entered