I recently switched by blog to a new server and I can no longer crop images I upload. When I click and drag within the image the new boundary box doesn't appear.
The strange thing is that I CAN crop images that are already in WordPress that were upload when my blog was on the old server.
What could be causing this? What are the php libraries that enable image cropping so I can make sure I have them on my new server? Why would I be able to crop some images but not others? Does something happen when you upload an image that enables cropping later?
Any thoughts to help me solve this problem would be greatly appreciated.