I had a button on my form to let the user select a folder (FolderBrowseDialog) and at one time I clicked the button and nothing happened. Then, after searching for about 5 minutes, I realised that the entire button_click event was gone
Now while i can't explain most of you symptoms, in this instance you haven't been cutting and pasting your controls at all have you ? to move them on to a panel or something else ??