What your little one or the notebook?? ;D ;D

Ok that is a real user answer andrew.
Give us the full details, like what you are doing at the time, how many programs you have open, do you have any external equipment attached to it??
Give us the full low down and then we might be able to tell you what is up

Oh and if your little one keeps crashing into the wall make sure she wears that helmet she wore the last time I saw her...... ;D ;D