Hmm, nobody answered. I try it again:
Though CFX has been running great on my Blade for months I've got a little problem for a short while now. Auto brightness doesn't work anymore. When I tap on Calibrate proximity sensor it now says "aborted. Something went wrong". Maybe - but I'm not sure of that - the problem occurred after a complete nandroid restore of my cfx setup after testing miui for a few days.
Any ideas what I can try?
Reinstall CFX or wait for JB a while or go to GB.