Yesterday, I posted a problem I was having with some UDFs: basically,
the functions worked as planned but the argument list did not come up
no matter how the function was inserted.

After much debugging I believe I have solved my problem and post it
here to share with you. It appears that there is a limit of 255
characters for the total characters used to name arguments in a
function: if the total is greater than this then the argument list will
not display but the function will continue to work.

I am using Excel 2002 (10.6501.6714)

All the best
Lloyd