ZfD 4.01 Client 4.91 _ir6 management agent Windows XPSP2

Since installing the new client, one part of our group policy (NOT to show
the windows shutdown button in the start menu) is only applied randomly if
you are a normal user, however if you are a user with local privilege, all
parts of the group policy are applied. With Client 4.9 sp2 and _ir6
management agent, the same group policy was completely dependable.

Does anyone have the same problem?