I'm using 5.x-1.0 version and there seems to be bug with the acceptable image formats. I have specifically set the image formats to "jpg JPG gif Gif png PNG" in "Administer>>Site Configuration>> Image Import" and when I try to create an image content I get the message "Uploaded file is not a valid image. Only JPG, PNG and GIF files are allowed."
Just to inform you, the module has been working just fine until today and i just can't seem to understand what is wrong. I need your help in solving this thanks.