Are you using other third party applications on your BB?

We have finally isolated another third party application that is taking priority over I'm Busy Software and thus preventing any auto replies from working. If you have PeekaWho (http://www.blackberrycool.com/2008/11/peekawho-v160-reviewed/) installed and running on your BB, I'm Busy will NOT WORK AT ALL. We have determined if you disable PeekaWho, I'm Busy Software will work properly. We don't know how to circumvent this problem but apparently PeekaWho is overriding I'm Busy Software