Qt Assistant as Custom Help Viewer - Home button doesn't work?

The <homePage> tag in my .qhcp file doesn't appear to work. Sometimes it seems to set the page I specify in that tag to be the value in Edit..Preferences..Options..Homepage; sometimes not. Either开发者_StackOverflow中文版 way, clicking the Home button does not work. Sometimes it does nothing, sometimes it says the page could not be found - and gives what looks to me to be a perfectly valid path.

Any ideas? Or worst case, is there a way to get the viewer to not show the Home button?

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The <homePage> should provide a complete path, i.e.

<homePage>qthelp://your.full.namespace/doc/index.html</homePage>

Could that be the problem?

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I clicked Restore to default, and now it seems to work. Not sure what's going on, but hopefully the problem is behind us...