Loading a progress form on a new thread

Question

I have an application that occasionaly I want to display an 'in progress' form with an animation on it.

I am calculating a large amount of data based on the UI choices made by the user, so they are interacting with the controls on the form. When they click the 'Go' button I want to be able to display the 'in progress' form and it's animation on a new thread so that it plays the animation and I can get on with working out and displaying my report info on another thread.

I have found a couple of pointers but am struggling as I am relatively new to C# programming.

If anybody can help it would be appreciated

Thank-you