You did not mention which lens you are using and if you are taking these action shots in daylight or under artificial lights.
Also we would like to know what settings the camera is using.
You can find this out by RIGHT clicking on one of the blurred photo file name.
Click the Summary Tab
If you see no data, click the Advanced Button
The information we would like is:
F-Number (or aperture)
We need that information, plus the lens type, and the lighting conditions at the time the photo was taken.
Then we can better determine the problem.
Waiting for your reply.
I just bought my first DSLR, a Canon EOS 40D. I do just fine taking portraits and landscapes, but when I try to shoot live action, virtually everything is blurred to some degree. I am not a professional photographer, and don't even play one on TV, but I would like better pictures of my niece and nephew's soccer and basketball games.
Any help would be appreciated.