16:50:43 484	<LAYER 5-4> ERROR:GetDrive-->CM_Get_Child(instance:4464) failed,GetLastError(0)
16:54:55 875	<LAYER 5-2> ERROR:GetDemoDrive-->QueryVolume failed
16:57:15 734	<LAYER 5-2> ERROR:GetDrive-->CM_Get_Child(instance:4464) failed,GetLastError(0)
17:01:14 453	<LAYER 5-4> ERROR:GetDemoDrive-->QueryVolume failed
