Video Preview problem

When viewing a Dream I'm finding on my computer with Vista 64bit - when I use IE7 64bit it won't let me view the Video Preview .swf there's just a white space and a red X out ,,,,, but when I use Firefox or IE7 32bit the Video Preview works just fine no problem ---- sooo it looks like several things not working with Vista 64bit yet , ahh ????? anyone else same problem ?