This thread will be for Viper software updates and bug fixes.
You can also report problems with the firmware .
In version 2.6, there is a problem with the Bank1 setting for the step multiplier (j-setting) . It starts as a random value and can't be changed. I've fixed this in version 2.7
If you have this version, just don't use Bank1 (first bank jumper only). Bank 2 and 3 work fine.