I was just wondering about her before i read your question, Bellanonna. I hope she hasn't left us for good, although if I remember correctly, she was upset by some of the comments on one of the more combative threads. It would be nice to think that she would come back, either as her original self or with another name. In answer to your first question, sometimes laptop, but it's on its last legs, so sometimes DH's Mac.
Do any of your DC look like you or move like you? For example, have you caught sight of her/him in a mirror in a shop and thought it was yourself? (Sounds like an odd question perhaps, but it has happened to me!)