I am having the same problem with the Kayran. I keep casting the Yrden but 99 times out of 100 it does not even seem to work.
I did manage to hack off three tentacles and the building was knocked down and as I ran up it the remaining tentacles got me and killed me.
So I tried over and over and now I can only manage one tentacle. The stupid Yrden does not even seem to work.
Once the game crashed somehow and for about three minutes was frozen then suddenly it started up again.
I wonder if it also has something to do with the framerate that my Yrden does not seem to work.
I do not understand about the advice of getting somebody's save games, I went to the site and don't know what to make of it. I also put game on easy.
Heck, I was so enjoying the game but it looks like lights out for me now. How stupid to make a game that a lot of people need to give up on eventually because they put a too hard mob right in the beginning. Very discouraging.
I mean 'easy' should be easy. If people want to play it hard they can chose those options. So I don't see the point of making a game so hard that even a lot of people on 'easy' cannot manage it. ›››
If there is frame rate problem, then it is related to your PC, not about the game.
if you can't defeat the kayran, you are just not using the viable method.
There are many methods to kill in witcher 2, but some are not viable.
I haven't did any good in other action game, but I finish Hard Kayran in about 3 mins, even hard, it is too easy.
You just need to learn and try, or a better computer will help. A necessary difficulty makes the game fun.