bobkate - you need to create checks of stocking stitch and then reverse stocking stitch - I will go and have a look for an actual pattern at the mo but basically:
1 - k5, p5, k5, p5, k5
2 - p5, k5, p5, k5, p5
3 - k5, p5, k5, p5, k5
4 - p5, k5, p5, k5, p5
5 - k5, p5, k5, p5, k5
6 - p5, k5, p5, k5, p5
7 - k5, p5, k5, p5, k5
8 - p5, k5, p5, k5, p5
THEN
9 - p5, k5, p5, k5, p5
10 - k5, p5, k5, p5, k5
11 - p5, k5, p5, k5, p5
12 - k5, p5, k5, p5, k5
13 - p5, k5, p5, k5, p5
14 - k5, p5, k5, p5, k5
15 - p5, k5, p5, k5, p5
16 - k5, p5, k5, p5, k5
then swap back again to row 1.