Hi. I am getting this error message 'This Beta version has expired please destroy it, in accordance with the terms of your Beta Test Site agreement' then my system crashes and shuts down. I have no idea what it means - could anyone help please?

What program are you trying to run when you get that message?

Is there a project loaded?
If so, does it contain Rapture Pro or Rapture Session? There was a problem with an early release of those synths that threw Beta messages. The fix is update the synth.
 

Hi, thanks for responses,  its Sonar platinum I use and I'm trying to load a file and it hardly starts loading when I get that message. And yes it may have rapture sessions in it - although as far as I know I am all up to date in the command centre, certainly my lights are all green???

If SONAR Platinum is already running and you are getting the error trying to load a project and the project contains Rapture Session - try reinstalling Rapture Session.