XCode4 not showing available options under Build Settings properties

For some reason, after some days working with XCode4, it simply stopped showing the available value options for any properties under the 'Build Settings' configuration.

Let me show you:

As you can see, I'm not able to select the provisioning profile from all that it is installed under my machine. The very same happens to boolean values, and anything else.

Does anyone have any idea of what it's going on? Any configuration I must be doing on XCode4?

I tried reset all preferences (deleting the plist and caches), I uninstalled the whole Developer Tools and reinstalled. It hasn't solved anything.

EDIT: What I'm saying is that, instead of showing a combobox with all available options for that property, it just shows a textbox for me to fulfill. What I want in the example above is to show all Provisioning Profiles that are installed, instead of having me wondering around what is the correc开发者_JAVA技巧t profile name/code and type there.

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SOLVED: This is changed by Editor->Show Values (or Show Definitions)

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Try attaching a device (particularly if you selected a device SDK profile). Something similar was the case for 3.x Xcode.