Issue setting SecureBoot to Disabled via cctk on a Latitude 3410

Greetings,

I have begun using Command Configure to streamline setting the default BIOS options for our machines, especially since the "update" of the BIOS UI starting with the Latitude 3400 line. The first machine I set up was one of our Precision 3640's and that went quite well, setting all of the options we change via scripting and using the .cctk files works a charm. However, no matter how much fiddling and monkeying I do, all I get when trying to set SecureBoot to Disabled on these 3410's is Error in Setting the Value. I have succeeded in getting everything else to work (had to put SetupPwd and then ValSetupPwd at the top of the list of options), but still SecureBoot refuses to be set to Disabled.

Does anyone know why this is? Is there some other option I need to set that would pave the way for that, similar to how I had to do with the password stuff? I've already tried changing SecureBootMode to AuditMode instead of the default DeployedMode (both noted as being supported arguments for the machine in question by cctk) but I get the same error of Error in Setting the Value. Any help is greatly appreciated.

Edit: My apologies, I got to this particular part of the community after searching for "Command Update" and it didn't list the "Thin Client" part of things, just Enterprise Client which I interpreted as meaning the Command Configure tool. I'd delete this thread to repost somewhere more appropriate but that doesn't seem to be an option.