facing issue in configuring biztalk 2010 on window 7 64 bit machine

Hi,

I  have installed win 7 (64 bit ),SQL Server 2008 R2 , BTS 2010 when I am configuring,its giveing  error for Biztalk Runtime

error :No mapping between account names and security IDs was done. (ConfigHelper)

Please help me to resolve this issue ,

Thanks,

Chandra