This can happen when the association between QuarkXPress and its projects is somehow lost in the Registry. You can fix this problem by following these steps:

  1. Open My Computer.

  2. Click on Tools>>Folder Options.

  3. Click on File Types.

  4. Highlight the QXP file type.

  5. Click on Advanced.

  6. Click on Change Icon.

  7. Browse for QuarkXPress.exe under Program Files and choose QuarkXPress.exe. You will see all the icons of QuarkXPress.

  8. Choose the QuarkXPress project icon.

  9. Click OK.