I have a UserForm with a series of TextBoxes each with a SpinButton
attached. The user can either enter a value into the TextBox or use
the SpinButton to change the value. This value is then returned to a
cell for calculations to be made. If the user selects the value in the
TextBox and presses delete, the value changes to a zero. If the zero
is deleted, only then is the TextBox cleared. I would like the TextBox
to be cleared the first time delete is pressed as the user might not
notice the value has changed to zero. I have also tried to clear the
value using code to set the ControlSource cell value to "" but this
leaves zeroes as well.

Any help would be very much appreciated.