Conditionally format adjacent Cells - if less than zero

Hello!

I have been playing around with formulas, but can't find one to do exactly what I want it to.

To mark my place as I enter data in a second column, I want the conditional formatting to fill Column A after I type a value in Column B.

Any thoughts?

R

Select A1

in CF

"Use a formula ......"

=B1<>""

Select file colour OK

Set Applies to: to your required range

That worked perfectly!

Thanks muchly!