When I try run a web application using StrataFrame, I get the following error message:

"An unhandled exception of type System.StackOverflow Exception occurred in MicroFour StrataFrame Business.dll".

Please suggest. Thanks.

Well, we really need more detail to give you any type of answer.  For example, at what point do you get the message?  Is this your website or are you running the sample website?  Are you using web projects?  What line of code, in your project, does this fail on.  Any details you could provide would help us in diagnosing your problem.