i know this is not the right room, but its most widly read..
i was haveing terrible probs with ctd, screen freeze and tcp switching since 1.10..about 3 -4 times per night..
4 days ago i did a full system surface scan then complete de-frag,
not had a single prob since.. i still gat a few micro freezes 1 sec or so every 30 mins or so but no more CDTs..
hope it works out for some of you if you try it..