Showing a form that I closed [RESOLVED]

Hi

In my MDI app, when it first loads up, a Welcome form is shown.
The welcome form presents a list of options for the user to choose. When they click an option, another form is shown depending of the option that chose.

To do this I simple put

VB Code:

formAddCD.Show()

where formAddCD was declared publically in a module.

Now the problem i have is when the user closes the form with the X button
as desired, the form closes but if i click the option on the welcome form again to re-show the form, the form simply doesn't show.

Why does it behave like this? When a form closes, does the variable that was declared for it, lose its reference to it?
I really don't know how to overcome this problem

Thanks

P.S whats making it 10 times worse, my program wont run inside the IDE so I can't step through the code, ugh

I done it, by hiding the form instead of closing it