I kinda got this handed to me a short time ago. I am running Omniback 3.5 for NT. If I install an Omniback patch on the cell manager, do I have to also patch the agents on the clients? Will installing a patch on the cell manager update the certified device list, or do I have to do something differnet for that? I get unknown devices with HP tape drives, I wouldn't think that I should be seeing that.