"Bad Request"

My sweet husband gave me a new camera for Mother's Day, which was so nice of him. I've been taking lots of pictures with it. I can load them to my computer just fine, but when I try to post them to my blog, it just says it is a "Bad Request". Hmmm. I'm baffled. So, until I get this figured out, no posting pictures. If anyone has any ideas of what I should do, I would gladly take advice:)