"when a cell is blank I want the active x check box not to be visible but when the cell is populated by a formula I want the check box to be visible."
If there is a formula in a cell, and the result is blank, the cell is still being populated by the formula, so your description is a little ambiguous.
Do you mean: There is a formula in the cell. When the result of the formula is the null string, I want the checkbox to be invisible. When the formula produces a non-null result, I want the checkbox to be visible.
If that's what you mean then set your checkboxes up to be named CheckBox1, CheckBox2, etc.
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