I have the GOG version and I unistalled and reinstalled the V2.0 avoiding to patch to V2.01. The game is ok, but the savegame aren't compatible, then everything you have made under V2.01 is missed
I had a Barbarian with Frenzy, after patch 2.01 installed frenzy does not work. I respec it and I changed Frenzy with Barbaric Yell... but it doesn't work too... my 2 cent.
I hope they fix asap.