Everything seems to be in order for my firmware upgrade from 4,1 to 5,1, but upon reboot I am still faced with 4,1 firmware. Here's what I did: 1. Downloaded the Mac Pro 2009 2010 Firmware Upgrade app from netkas.org 2. Downloaded the 2010 1.5 firmware from apple 3. Mounted the Apple firmware 4. Ran the updater. Got Success popup. 5. Shut down machine completely. 6. Started machine, held down power button until power light flashed (also repeated the above process several times, including holding down until sound, and holding down until sign on screen) 7. Got gray screen and progress bar... looked like firmware might be updating...excitement building.... 8. go to sign in... signed on, checked About This Mac .... BOOOO same old firmware. 9. I have the stock GT120 graphics card...so should be no EFI issues. So I've read so many forum posts my eyes and head hurt!! But ...what did I miss? Machine is A1289 EMC 2314 Dual processor 2.26GHz. I did replace the memory with 1333 memory and reset PRAM one time before trying to upgrade the firmware. Thoughts? Ideas?