I'm pretty new to web programming and I've been told that if this is what I want to do....I should use MP's and not Frames/IFrames. So, I'm trying to use them and finding it a little difficult. My understanding is that a MP can contain controls that appear whenever any other Content Pages are in view. So, I have added an asp:Menu control to my MP. Each menu item references a CP. What's weird is, when I click a menuItem, I retrieve a CP using the "Response.Redirect" command. However, even though it will load my CP, it will throw an unseen exception - "Unable to evaluate expression". Why is it doing that and even moreso, what's the correct way to call a CP?

Thanks,