Here is my personal experience: If you have blinds or curtains pulled, the air in the room won't circulate and condensation -- even ice -- will form. This will happen no matter what brand of windows you have - Andersen, Pella, Simonton, etc. Mine are Marvin wood/clad, which are some of the best.
In my situation, I had a bedroom on the upper level of my house that I kept closed and blinds drawn. I thought I was doing a good thing, energy wise, but it made condensation and ice form in winter. I finally tried raising the blinds and leaving the door open and no more condensation problems! I also suspect that showering and cooking while not running external exhaust fans exacerbated the situation.
Andersen Windows has a really great video that helps explain condensation, why it happens, and how to prevent it (I am not employed by Andersen, nor sell their products). http://help.andersenwindows.com/system/selfservice.controller?CONFIGURATION=1000&PARTITION_ID=1&TIMEZONE_OFFSET=&CMD=VIEW_ARTICLE&ARTICLE_ID=2586
For those who don't want to bother watching the video (it's only 3 min long), here's the take-away:
"Condensation doesn't mean there's a problem with your windows. In fact, the presence of condensation could actually be a sign that your windows have good, tight seals. Everything that makes homes more energy efficient also locks moisture inside your house and increases the chances of condensation forming."