Help Changing from using PIN to pattern

[funkytwig]

Hi, I am using Android 2.2. When I first got the phone I set up a pin (as it was what I was used to) but now want to change to pattern. I am probably being thick but cant work out how to do this.

 

[Meh]

Settings
Location & Security
Change Screen Lock

But be prepared to have to wipe the screen a lot to get rid of the pattern!