I can't really claim to be a newbie. Been programming for literally 40 years, even some time on the ***** Multics that gave birth to Unix. I've even programmed in several Unix shells. But i'm in deep pucky with my new 810. I have a G4 Powerbook running Tiger and of course my n810. The 810 came with RX-44_2008SE_1.2007.42-18_PR_COMBINED_MR0_ARM.bin installed. I'm trying to upgrade to RX-44_2008SE_1.2007.42-19_PR_COMBINED_MR0_ARM.bin. After searching for 3 evenings, I have yet to find help updating an 810 from a Mac. I also want to add that those good folks with lots of Unix/Linix experience who are trying to help on these forums are somewhat blinded by their own considerable expertise, and they don't realize that they often omit numerous steps that are not obvious to the rest of us. Peace