Stop html messages being downloaded automatically?

Maybe this is a dumb question, but when I use OE6 with hotmail, I can choose whether or not to have the messages downloaded to my view window for everyone except spam advertisements. For all of my friends and other valid email, the view pain will show: "Message Not Downloaded ".
This gives me the option of either downloading it and viewing it or not. However, no matter what I seem to do, all the spam that manages to get past my filter settings is instantly displayed in the view window - throbbing *****es, fake doctor degrees, ugly fat porno girls and amex card offers. Is there any way to stop these from appearing in my view window without my permission?
Thanks heaps for any help.

 

Open OE and disable the preview pane in View/Layout