Firstable, many thanks for your comment. I got that problem I described in some past journal, with an old camera I brought in a travel, and had a serious curtain problem that damaged enought frames to put it on the garbage. I'm kidding, but in fact I won't be able to use it untill I'll be fixed.
The point is that I think some of my pictures arn't in focus because I forgot to sharpen for web... Mmmh in fact, it's possible too that I miss during the shooting... I believed it wasn't so many frames blurry...