I have a problem with client PCs running on a network. The screensaver and power timeout settings I am creating on the local (client) PC seem to be lost when I log onto the network. Are the settings taken from the server, if so where? Or are the settings stored locally?. Any help would be appreciated.

The settings are usually local and specific to each user. However, a network login script might change those settings (you might notice a black Command Prompt window when you log in if it is running a script) or, alternatively, the Machine System Policy may have been set from the server. Use 'PolEdit' to check the system policy on one of the clients.