Word AddIn will not start in second document

Hi,

I wrote a word addin (Office Developer 2000 - VBA) that loads at startup of Ms Word. In the document with which Ms Word starts (document 1) everything is OK. I can also run the addin several times within Document 1. When I open another (new or saved) document, document 2, the addin will not run anymore. The commandbarbutton is visible and enabeled in the commandbar, but when I click on it nothing happens.

Any help will be appreciated.

Thanks,
Hendrik Jan