iceauth, what is that?

I know that I have played around with things that I do not understand, I think I somewhere wanted to try out ICE but this project stopped in its infants. The remnants are something during starting X: iceauth : creating new authority file /home/cons/.ICEauthority The file itself is empty and deleting does not solve the problem because it is recreated every time again. After login out I also get two error messages complaining about ICE (forgot the text). Could somebody help me out with eradicating these remnants of ICE? Where should I look?