Hi Pablo,
I have several 17.0 systems running and they all appear ok in chrome. Not sure what is causing this for you specifically. Now I am only looking at it in English, but I am wondering if maybe it has to do with a localized language version of the product. To be totally honest, looking at your two screenshots I dont see much difference in the look of the font - they really look the same to me.
If you try looking at it in chrome on a different machine (other than your own machine) - does it appear that way as well? Do all users see it that way or just some?
Jon I.