Topic: chaning the background colour in viewer 1.8

its that time of the day again, i've opened the index.htm and edited the following var fo = new SWFObject("viewer.swf", "viewer", "100%", "100%", "7", "#000000");   

This if i'm right is the black, i've saved the file, dropped back to dreamveaver and Insert> Media> Flash, selected viewer and then saved and F12 to view in the browser (ie7) but the background is a kind of grey not black!

Any thoughts where i've gone wrong?
Thanks in advance