One of our customers has reported a problem where Word documents display control characters.
Their documents are quite sophisticated, including drop-down picking lists and it’s here where the corruption occurs, although it’s also in other places where we can’t see anything particularly sophisticated in the document.
Our software was using an old version of Words (and the release notes actually mention a fix for something that sounded very similar to this) so we upgraded to the latest version.
It’s better, but it’s not completely fixed… the header section and some of the more complex areas in the document still have control characters.
I will get a copy of the document and attach it to the post shortly, I don’t have it to hand at the moment and I realise you need this to help diagnose the problem.