Cleartype on my Q1 with Vista installed looks like crap and today this issue reached the point where I could not hold it any more. So I went to this wonderful Microsoft's page and tuned it up! What a difference! Even when that page was originally designed for Windows XP it works with Vista in the same way it did on Vista.
One thing I noticed, in the second page of this tune up, the best setting was this one:
Which is marked as a very rare one.