Blender 2.5x Open file problem; opens file structure!

I don’t get how or why this happened but suddenly, when I try to open a file I’ve been working on, I select the file and click open blend and what is “opened” is the file structure window where I selected the file I want to open!

the correct result would be that the file be opened.

anyone else?

rc

You may have saved the file dialogue as your user default with an accidental Ctrl-U. Do Ctrl-N then Ctrl-U to get back to factory default settings.