I m starting to learn how to edit my raw shots..my Photoshop is old version SMS it doesn't read raw and I don't have lightroom. I think I will probably use the software that came along with the 550D
I was trying to shoot a flower yesterdsy and i tried to do a bokeh but I think I set a too wide aperture and maybe I was too close to the flower as well, I could not get the whole of the flower in focus..then I read from the web that aperture should be set to something like F7-8 to close down the light. Well I used f2 yesterday... :S
It could also be out of focus, as f2 has a very narrow depth of field and if you move after focusing, it could be off.
Use the free software that came with your camera, or just update Photoshop (specifically Camera RAW). You can do so when you open Photoshop, and click Update under the Help menu.