One can configure whether a machine should apply the System Policies with this DWORD :
This option makes it possible to logon to the local machine, set the registry key not to load the system policies and then logon to the network without being restricted.
0 = Disabled
1 = Automatically search for policy file ntconfig.pol in the Netlogon share
2 = Manual specifying the location of the policy file using NetworkPath value
[HKEY_LOCAL_MACHINE \System \CurrentControlSet \Control \Update]
UpdateMode = 0 (Default = 1)
Note there is an urban legend that setting the value to 0 will make your explorer refresh the folder contents more often. But setting the value to 0 won't do much harm, so it is a pretty harmless legend.
More Info MS KB168231
More Info MS KB274478