Mirrored Cells

[phillyfilms]

Is there a way of having two cells mirror each other. In other words if I enter a value in cell A, I want it to also appear in cell B. Likewise, if I enter a value in cell B I want it to appear in cell A.

I got a couple of responses yesterday, but in both cases, it was only good for one use and then it stopped working.(I may have missed how to implement properly)

Many Thanks.

[Mark O'Brien]

How did you try to implement them? It looked as though both posts gave you exactly what you asked for. Is there any additional conditions that the guys should have been made aware of?