Preserve Modifications Not Working

[Guest]

I'm using RH8 and am linking to a Word 2007 document. In one topic, I created a drop-down DHTML hotspot in RoboHelp. I saved the topic, and when prompted I selected Preserve modifications to this file. I generated the WebHelp and it works great. But when I update the project, the modifications disappear and the Word doc version overwrites the changes I made and supposedly preserved. What's going on?

[Guest]

Okay, now occasionally if I make a change in the topic, it will get preserved (not always though), but if it gets preserved, RH deletes it from the TOC!