http://nikonasia-en.custhelp.com/app/answers/detail/a_id/6938/~/nikon-d7000-firmware-ver-1.01-download-%28windows%29
Bright spots were sometimes noticeable with movie recording of especially dark scenes or subjects. Occurrence of this issue has been reduced.
*After the firmware is upgraded, bright spots may be visible in the monitor while the camera is autofocusing with the shutter-release button pressed halfway in live view mode. However, these bright spots are not recorded with still images and movies and are not visible in the monitor while the camera is autofocusing during movie recording.