Why won't forms display in the forms designer

I have a legacy product I am being forced to maintain and a couple of the forms do not pop up when clicked so that I may view / modify them in the form designer.

I double click the name from the tree and nothing happens.

Can anyone think of a reason for this?

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Look into appropriate dfm file.
Maybe left top right bottom values are such that it is out of screen.
In such a case change them.
this can happen if the program was written in a different version of Delphi than the one you are trying to open it with, specifically when the form was NOT saved as Text DFM
Kyle FosterCEOCommented:
When you open the form do you get a message that "component name" not found or Reference to "some component" found but "some compenent" not found.  (something like that).  This can cause the form to not view.

Also, check the .pas file for the following compiler directive.

{$R *.dfm}

if this is not there then the designer will not know the name of the dfm.  add it just below the

Implementation keyword

{$R *.dfm}

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