Currently Being ModeratedNov 13, 2012 5:59 AM (in response to Eman2)
I don't know how difficult it will be to install an older version.
Currently Being ModeratedNov 22, 2012 4:08 PM (in response to Eman2)
I have been search for the same issue today. Premier and Vegas lost ProRes with 7.7.3. update.
Try community Avid forums for older QT files.
or Old Apps dot com.
Let us know if you learn the formula for back dating QT on Windows.