planning server starting problem

[karthikeyan_ngl]

Hi,     i have installed cognos8.4 bi and cognos 8.4 planning in the same pc.cognos 8.4 is working perfect.but planning configuration is not stating ,i have chaged the dispatcher port number .but its not starting.its through error like "
11:12:38, 'com.cognos.pogo.services.DefaultHandlerService', 'pogo', 'Failure'.
DPR-DPR-1035 Dispatcher detected an error."

and some times its through  like "status could not be changed error code -0"
Please help me.....