Question in CM38.

Hi, guru,

Could someone tell me how to change the quiry period in CM38?

I maintained Long-Term planning which is between 2007-03-01 to 2008-04-01. After run MRP, I want to evaluate the capacity availability. But, when I use tcode CM38 and change the evaluation period in the menu "Setting-->General...", the system gave the error message as following: "Only capacity requirements from 2007-02-24 to 2007-09-22 can be displayed". So question is :

How could I evaluate capacity availability for the whole next year in the Long-Term planning?

Thanks in advance.