Have a Nokia 610 and the screen auto rotates as the phone is moved about. This drives me nuts at times so how do I switch this function off ?

Have searched everywhere in the settings but no success.

As well am having trouble setting up contacts in the People folder;

Have set up a group Family
tap to Family group
tap pencil to add details of a new contact
tap "add a contact"
However get a caption "choose a contact" No results

What am I doing wrong?

Thanks for your help.