I'm using theme Twenty Eleven 1.3. I sized an image in Photoshop to 592x400 pixels prior to uploading it, which has always worked for me in the past, and for some reason it appears blurry in the "add new post" and on the actual blog. I tried clearing the cache and the cookies too because when I searched for solutions that was suggested. I also checked to make sure I had the most recent update/version for my browser which is firefox.
Here is a link to my blog - I kept an image up as an example of what is happening. The image is a jpeg file and it's 72 dpi. Please help.
Thanks for your time,