problem in period drill down

[jananee]

hi all,
in the powerplay reporting 7.2,for the period,when i select january 2009,for all the measures it displays the aggregated value of jan,feb march 2009 in jan 2009 .if i select feb or march the values for all the measures are 0,since january itself has the aggregated values of jan,feb and march.can anyone help me to solve this issue.Please help.thank u in advance