I have a problem I really can´t solve.

I have a site which for the main content use transparency (client wish !), like this:

filter: alpha(opacity=80); -moz-opacity:0.8; opacity: 0.8;

The above works fine, but as I need to add some Flash movies here and there at the site, I add a little:

wmode="transparent"

To the Flash code - using IE and Firefox (PC), there are no problems, the Flash is transparent and therefore has the same background as the main content, but Opera and all Mac browsers doesn´t show the Flash movie at all !?

What am I missing here ? Tried to Google my problem, but no results...

Thanks