MJ Ray wrote:

Did you start a new login after doing that? Changes to /etc/group only take effect then. Running the id command shows what groups you are in for any given login.

Basically, adding yourself to the proper group is the right way to do it.

Thanks for that! I didn't realise that I needed to start a new login. I tried restarting Efax and also X, but obviously didn't go far enough back. Anyway, I've set the port group back as it was and have added myself to its group, as you recommend, and now it's all fine.

Cheers,

Gerald.