XPower: Can't change activity rates

Hi, I have created a .vcd file using modelsim and am trying to estimate the power consumption for my design. The problem is when I load this vcd file in the XPower it gives warnings as shown below.

WARNING:Power:1087 - Can't change frequency of net CLK to 40.00Mhz WARNING:Power:90 - Can't change activity rate of net y1_inst/inst1/BU2/U0/virtex4.pmf.v4pm48/single_dsp.v4_parm_18x18/p_i to

10.0% of CLK_BUFGP. WARNING:Power:90 - Can't change activity rate of net y1_inst/inst1/BU2/U0/virtex4.pmf.v4pm48/single_dsp.v4_parm_18x18/p_i to 10.0% of CLK_BUFGP. WARNING:Power:90 - Can't change activity rate of net y1_inst/inst1/BU2/U0/virtex4.pmf.v4pm48/single_dsp.v4_parm_18x18/p_i to 10.0% of CLK_BUFGP. WARNING:Power:90 - Can't change activity rate of net y1_inst/inst1/BU2/U0/virtex4.pmf.v4pm48/single_dsp.v4_parm_18x18/p_i to 10.0% of CLK_BUFGP.

It sets the clock frequency automatically to 10 MHz irrespective of what I use in my simulation.

I am using ISE 8.2i. Can anyone pls help me with this?

Thanks Saumil

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Saumil Merchant
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