After installing 10.1 SP2 on the media server, the Agents\RANT32 folder isn't updated. I uninstall the agent on a server and then I've tried pushing it out as well as doing the manual install. Either way, it doesn't get the latest files. The beremote.exe on the remote agent is 10.1.5629.20.
Another poster mentioned this earlier, but his post is now buried under the rest of the days activity. His post is at http://forums.symantec.com/discussions/click.jspa?searchID=472482&messageID=4459531