Theme options not working in BP Corporate

Hi people,

After some great support last week, i'm back for something else, hope you can help us out here:

The theme options panel is not working anymore. I don't know what i could have done to make this happen. From the one moment to the next, nothing happens anymore when i click the options. So to be clear: from the admin panel, i choose "Theme Options". Then i see the usual options, but i think they have been greyed out. When i click any of them, nothing happens. There is no error message.

I don't know how to be more specific than this for now. Do you have a clue what may be causing this problem?

Thanks in advance!