Never Mind... I tried a different USB drive, and it worked fine.
Dell released a new BIOS update for the 8930 on oct 18th. I'm going from 1.1.24 to 1.1.26. I've done BIOS updates for years and years and never had any problems until now. I downloaded the new BIOS to my desktop. Clicked on the download.  Got the prompt to install. Answered yes. Nothing happened.  So. I downloaded the update to USB. Went into to BIOS and chose BIOS Flash Update. The correct file showed up on the update page, but, again, I could not get to execute. Could not click on the file to start it.  What am I doing wrong? It seems to me, there is no file to execute on the downloaded file.  Thanks
XPS 8930 BIOS 1.1.26, not installing off USB