Another newbie question - movie clip resizing in browser

hi all,
I have just added a myMovie.swf clip to a web page.
When I go to that page the browser centers the clip and resize it so that the clip is seen whole no matter how small the browser window gets. Which is something I do not want to happen.

What do I need to do to nail the clip to its original size and stop this resizing in the browser?

thanks,
kowalsky