I don't want a render to texture, i just need it to blur stuff that was already drawn to the view. I don't need it to realistically bend the light behind it using the render to texture since a simple jiggly blur is fine as long as it appears in the correct place.

Also, if you reference files (such as chrisb's dll) please actually provide me a link to them, otherwise I have no idea what you're talking about since I can't find 75% of the stuff people talk about using search.

But I don't actually want a refraction method at all, I want something that blurs what was already drawn (sorted like how transparent entities are sorted since you can see through it), kind of like how on vista the stuff behind title bars are blurred, only it jiggles a little.

It's a pretty cheap effect but I don't want full blown refraction unless I want to do something else.