Problem closing windows form

Hi folks,
      I am developing a set of user controls components for a program. The main user control consists of a tab control which can add content as tabs when loaded. For example a user control which I use to authenticate clients has got a "Logon" button. When I click on the Logon button, it loads another control on the tab control as a tab page.
     However, when I have loaded the content on the tab control, I find It difficult to close the windows form hosting the main user control. I can only kill the form by using the "Control -Alt Delete Method"
      Is that garbage collection is late and the windows form can not close because of open resources ?Do I need to explicitly call the dispose method?  PLease help me.
#Dmxflames
dmxflamesAsked:
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KGregConnect With a Mentor Commented:
If you're using threads, you need to kill them.  If you have dynamically created disposable objects, dispose of them.

Try that and let me know..  also are you capturing the close or closing events?

KGREG
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thenrichCommented:
You've got something else going on. The correct solution would be to call the Me.close in the close button of the form and put a me.dispose in the finialize event of the controls. I'm thinking 1 of your controls is procsessing something.
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wguerramCommented:
Can you post the code of your control.
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