I do not actually get the error message when the userform pops up, but rather
only after I have been using it after a little while (no certain amount of
time), and I do not get the message every time I use the workbook. That is
what is so puzzling about it.

"dq" wrote:

Hallo TonTon,

I've tried to recreate your form, but I don't get any errormessages
when I start it. IF the error always occurs when you open the
workbook, then the problem is perhaps in the WorkBook_Open event. Can
you show us that code to

DQ