Natalia, I can't remember for sure, but since you say "the fields remain grey" it sounds like you have the Desktop Personal version of the software, which doesn't include connections to the entire list of data sources. If it's grey then you don't have access, and you'll need to upgrade to Desktop Professional.
Thank you for your response.
Actually, I've been working with the Professional edition, but the fields remain greyed out after clicking on Connect. I've tried with a couple of other drivers to another data sources and they seem to react correctly.
did you succeed?