I haven't had a problem with my screen freezing - but I have noticed that NoScript is blocking something new: lookery.com. Not sure what that is about and it may not be related to the Portal upgrade.
(off topic: Has Photo Bucket suddenly reduced the size of the free account? Lots of members' sigs are full of "bandwidth exceeded, upgrade to Pro".)
Lookery.com is a user-targeting service that helps site owners amplify their audience data. Their ads say: Learn More: Uncover valuable insights about your sites’ audience .
There is more info here:
http://www.crunchbase.com/company/lookery ( Finjan safe site)
