I just realize, that Flash movies inserted by FCKEditor are only played in Gecko Browsers and not in IE, because the surrounding object tag is missing..http://kb.adobe.com/selfservice/viewContent.do?externalId=tn_4150.
Since I was never a fan of IE it is still a fact that over 60% of the visitors are using this beloved browser. Because of this fact it is quite a big issue. I don't find any topic about this issue and I wonder that not anybody else found this out. Is there already a solution around. If not, might it be possible to integrate SWFObject?