Nuendo 8 has reset itself

Hi All,

So I open up N8 and all my key command, preferences, set up etc gone. elicencer software disappeared, feel like I have been hack or something. Yesterday the project was working fine, today it is a s**tshow.

So redoing all my keycommands etc but there is one thing I just cannot figure out how to do and I am sure this is simple…when I choose an audio event I want it to also select the audio track that that audio event is on. Where is the button I have to press to do that? As usual I am the only person in the world who doesn’t know this. I feel stupid.