Is there a reason to reboot PGP Universal Server?

I am running PGP Universal Server version 3.2.0 MP3 (build 2317). We schedule network maintenance night per month and one of the tasks is rebooting all servers (physical & virutal) in our data center.  I have never had to reboot the PGP Universal Server for any reason, so I'm not sure if there is a specific procedure to reboot the Unversal Server, or even if it is necessary.

I know the server can be rebooted using the Universal Server Administration (System Settings), but is that the only way to reboot the server?  Can it be done from the server console?  Does it matter which way it is rebooted?  Is there a reason why or why not this server should be rebooted on a monthly basis?

Thanks!!