MS Word 2000 - radio buttons

I am trying to create a questionnaire in Word 2000 which includes a number of Yes/No radio buttons. I have got the radio buttons in place, using the Visual Basic toolbar, design mode. If I switch off design mode and close the VB toolbar I can confirm that the radio buttons work OK. But when I save the file, then re-open, the VB toolbar is active again in design mode - even though I have switched the darn thing off. This means that the file is not suitable for sending out - anyone trying to answer it will open it only to find it in VB design mode.

Clearly I'm missing a trick here to get the VB toolbar and design mode to stay "off" - but how? Any answers out there?

Resolved - well, sort of.

The problem described above still applies on my home PC where I created the document with option buttons (and indeed on other PCs on my LAN which also run Word 2000) - the VB toolbar and design mode persist. However opening it on a PC in the office (Word 2003) was OK - no design mode, and the buttons do what they are supposed to. So perhaps the problem is confined to Word 2000.

Just out of curiosity I tried creating the same document with option buttons using the new OpenOffice 3 - a much simpler task, which produced a file size only one quarter the size of the MS Word file. Unfortunately not many folk can read .odf files ....

Thanks for the update.