I am trying to upgrade the BIOS on this laptop (service tag # gpxx811) from A08 to the latest A15. I've tried going directly to A15 and also to A12 as an intermediate step. I'm using the Windows/floppy-less upgrade programs. Whenever I run it, I get "Dell BIOS Upgrade Setup Failed - Unable to obtain required information about your system. Setup cannot complete." Any ideas on why this is happenning would be greatly appreciated. Thank you.