Adding anevent handler breaks bubbling

Hi,

I added my own event handler to IHTMLElements to catch mouseover and
mouseout events. Receiving the events works well. But the bubble chain
is broken, so for example no JavaScript
onmouseover-/onmouseout-handlers are called. Inside the event handler
I can get the eventObject from the window interface but neither
setting the return value by
eventObj->put_returnValue(TVariant(true/false)) nor setting the bubble
by eventObj->put_cancelBubble(VARIANT_FALSE) has an effect.

With onerror and onmousedown events the things work fine.

Any tips how to get it working are welcome.

Thanks

Bernd
.