I have checked out the Sim2 website, but it does not seem to host the ability to download firmware. Do I need to go to the appropriate service centre to get it done or is it just safer to let the experts do this. I was quoted AU$99 and 1 day turnaround. Normally for this stuff, I just connect it up to the home computer and upgrade the firmware on an as needed basis. PS. I have a Domino 20 with 2.21.09 F (JON) revision that exhibits some odd behaviour on some resolutions driven from my Apple Powerbook.