Since upgrading my N8 to anna, whenver I'm done with a call, and pull my phone away from my face to tap on hang up, it keeps going automatically to the home screen and putting the hung up call in a bubble at the top of the screen (highlighted in red). I usually have to tap it, to THEN tap end call, because sometimes it just stays there for a while.
This also happens in an active call, for example, my voice mail. I dial the voicemail number, I listen and wait for the prompt to enter the pin, and when i take the phone away from my face, it goes back to the bubble on the home screen, and by the time i tap that and go to the dialer, the voicemail is complaining that i haven't entered anything yet and to try again, which can slow me down.
Why, would the anna update do this? Can I just go back to the previous system software? I'm tired of little bugs like this.