I'm using wordpress on my Win Server 2008 R2. When I try to view an uploaded image, I get error 500. All the small preview images work.
/wp-content/uploads/2010/09/image-60x60.jpg /wp-content/uploads/2010/09/image-100x100.jpg ...
I have checked that directory and that file exists. When I open that image with paint and save it without editing, it starts to work and no error 500 anymore.
What could be the problem? Is something breaking the image when uploading?