I have an SA540 which has been running for a couple of weeks now with no problem then all of a sudden, the appliance totally locked up. I couldn't ping nor see the device on the network anymore. Luckily, i backed up the config to a file. I ended up having to restore the appliance to factory defaults. However, when I go to restore the config, none of my settings are there. My primary firmware is 1.1.42. The backup is from the 1.1.42 firmware. The secondary is 1.0.15 which is what came with the appliance. I'm kinda bummed out this happened but my biggest concern is what the use of a backup restore utility if it doesn't work???