I am still trying with a simple examle, applying these steps
1) File/New/640 pix web page, it has as a default two layers, MouseOff and MouseOver
2) Select the MouseOff layer and draw a black rectangle
3) Select the MouseOver layer and draw a green rectangle
Do I have to after right click on the black rectangle and define something in the Web properties/Mouse over tab? To show have the effect that if the mouse is over the black rectangle, the green comes up?

Basically with adding a Layer3 and placing the green rectangle on that one, after defining for black rectangle that the Layer3 is popup layer, it works perfectly. But somehow can not reproduce with the default layers MouseOff and MouseOver.

thanks,
Zsolt