Hi again Websailor,

This code uses Sheet1, A100:A113, A110:A113 and !20:A123 to store old info. It needs to store 3 times.

When it starts it store the Info for interval 0. Then at interval 30 it displays current info and saves that at Info 30.

At interval 60 it writes Info 60 to third position, compares Info 60 with Info 0 and displays any that match. Now it moves info 30 to Info 0 position and Info 60 to Info 30 position. At next Info 60 interval it writes, compares and moves Info again...

HTH,

Cheers,

dr