Computer cannot run the logon script when domain users is added into the local 'power users' group or local 'administors' group?

Hi!

I have built a domain and add several computers into the it.

I create a group policy  to execute a powershell script  when user logon the domain computer,

and the script is to map a shared storage space to loal driver such as z:.

Since the domain users will be added to the local 'users' group when the computer joined to the domain,

so when I  login the domain computer with the domain user , it will execute the logon script correctly and the mapping is ok.

But after i add the group 'domain users' to the  local 'power users' group or 'administrators' group, 

when I login again, the logon script is  not executed ,and there's no mapping created. the very strange thing is :

1. i can run the script manually , and the mapping driver is created normally.

Did anyone have met this problem ? any suggestion please!

Thank you very much!

Best guards

chu

Chu Qiu