Hi Edgard,
When I statrted learning to PR, I didn't have much success with the dictionary game either and gave up playing it because i started to experience alot of stress from the pressure I was putting on myself to "get it right". I have read other posts on this forum that have declared that the dictionary game is not neccessary in order for you to learn to PR, so don't worry about not being able to play the game.
As for the words being blurry, thats ok, they are for me as well most of the time when I PR.
I am currently activating a medical text book that is very technical and the author is introducing alot of new terms that I haven't come across before. Last week I started activating a chapter and didn't understand the material. After one day of being stuck I asked myself "how this material is different than what I am doing in my office and is it better than what I am currently doing?" After another day the answers came to me and I understood what the author was trying to say and that her techniques are inferior to what I am currently using. I was unsure of my conclusions so I continued to activate the chapter in question and after another day my confidence in my conclusions is high enough to allow further activation of the rest of the text. I will be finished with the next 4 chapters of this text with in two days.
If I didn't know how to PR I would've put the book back on the shelf and probably never opened it again as a result of being in a stuck state and not knowing how to get through it. THIS SYSTEM IS AWESOME!!!! 
Gregory