ActiveX Error w/Calendar Control
 

Hello,

I get the following error when opening a workbook with the ActiveX Calendar
Control:

"This application is about to initialize ActiveX controls using
persisted data. The data may be a virus. The controls will be
initialized using default settings and the existing data will be removed
from the document."

Does anyone know what is causing this and how to stop it from appearing?

TIA,

RGA