Translation provider missing from analysis result

Hi all,

I managed to perform an analysis task through the Trados Studio API (2011), and also managed to generate a HTML report. But I have just found that the row "Translation providers:" is missing from the HTML output. If I perform the same analysis in Trados Studio, then this line is there. Do you have an idea what may I have forgotten to set up?

Thanks in advance, 

Tamas