So, I clicked your link and read the instructions - when I go to load the downloaded firmware (5.3.4) it comes over as a unzipped folder labeled "Insteon_5" with three folders in it labeled "WEB, DEF, CODE" when I look in each one I don't know what file to choose to initiate the firmware upgrade? Also, I then just zipped the folder and tried again and it just gave me an error. Do you have any advice? I was hoping the upgrade from 5.3.0 to 5.3.4 would be seamless but not so lucky...