It is possible that you are editing your object in the wrong spot.
Were you editing the obejct in the object editor window or were you manipulating parameters of an inserted instance of this object from the object dialog box.
If the former, you may have been looing at the 2D view window which would display this piece of text. Its not where you should be working.
If the latter, there must be one of the paranmeters that is set wrong. The invalid parametr flag shows up on parts that have soem error checking built into their scripts.
Attached is a picture of the object editor. Editing parameters simply changes what the default values should be. You need to edit in inserted instance of the part.
Hope this helps.
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