When we first installed the agent via the server, we selected a domain or IP range for the push.  Now, we want to use that method again to install the agent on PC's in the domain, or same IP range, that do not have the DC agent installed.  My question is .... if we push to a domain or IP range, what will happen to the PC's that already have the agent?  Will it ignore those machines, or install over the existing agent?  Any insights are appreciated.

Thanks.