OK because of the issue with beta RC fatal error with avast.setup and inability to update. Did a clean install of avast 7.0.1407 free and rebooted, all appeared to be going well, imported my old settings.
Tried to register, but that just hangs, left for over 10 minutes and egg timer still present, so appears stalled, closed window in the end.
In the registration process questions on android miss one of the obvious answers, I have avast! Mobile Security installed, which kind of makes the slider redundant.
EDIT typo