After I added the current software update to FCE, the effects popup no longer appeared when I followed the documentation and right-clicked the canvas. To add insult to injury, all the generator effects were absent when I clicked Effects in the menu.
After much frustration, it finally dawned on me to open the little icon marked A (with the film sprockets) below the canvas on the right. And voila!. There they all were (including Boris).
Reg