I wish to change the formating of a cell depending on whether it's containts
are a number which is:
a) from reference to another cell on another sheet worksheet or
b) directly entered by the user and typed over the formula

The application is a time sheet where the "planned/forcast number" is
supplied and and the user updates as they progress by over writing with
actuals numbers. I would like to have the backgound cell colour change
depending on whether the value is forcast or actual.

Any suggestions?

Cormac.