Glad you guys found it useful...
In more detail, if you have a similar problem in the future, do a view source and look for the URL of the banner ad... Then you can do the same thing to that banner ad as well.
There's also a method to use your hosts file to redirect ads to a dummy file, but that's more advanced. You can find out how to do that by surfing the web.
Working as a PM on a web site I learn a few things from the developers, and I can occasionally share them if they are not dangerous to my or other sites.