Import command broken in CoreldrawX7

I cannot import certain file extensions any more in Coreldraw X7. The import command is broken.  I click "import" the  open the extension selector on the bottom right. It lists file extensions alphabetically but only from PDF through WSD. The file extensions from letter "A" through "O" are missing and the program doesn't see them therefore I cannot directly import anything with a file extension that begins with the letters "A" through "O".