AV servers in Symantec System Center 10.1.7 has thousands of clients.  Most update normally via VDTM.  One or two hundred of these clients are stuck on a certain date.  In this case either 11/2/2009 or 11/11/2009.  Clients are online, just not getting updates from AV server.  on the Event Viewer of the AV server, I see many entries like Event ID: 4 "Update to computer JGELLERM-T60 of virus definition file 111102c failed. Status FFFFFFFF"  What does this mean?

I know there are ways to resolve on a case by case basis for each machine, whether that means running rx4defs or reinstalling the client, but with a hundred or more machines, I am hoping to be able to script something that can fix these machines remotely.

thanks.