Took my quicktime movie off my macbook pro timeline to create a dvd on my 8 core mac pro. Wouldn't play. Quicktime claimed it needed a codec. Discovered FCP was only 6.0.1. OK no big deal – downloaded pro aps 5-8 (?) which contains fcp 6.0.6 which is what I have on my macbook. Nope can't update without 6.0.5. OK downloaded and installed and then installed 6.0.6. Still no go with quicktime or fcp playing my film – missing a whole slew of codecs. Looked in the quicktime library – no xdcam codecs. Transferred the library off my macbook and put on my MacPro. Still no go. Seems people had this problem 2 years ago but none of the threads ends in a solution that works for me. It has been suggested to me that I should have upgraded via the automatic update, which is what I did (after) my first attempt with pro aps. How do I get back, or forward to where I can set up properly? Please.

Do you have a backup of your old setup?

If you do then just copy the content of the library/quicktime folder from the BU.

If not then you may have to do a new complete reinstall and all the updates.

This is what mine looks like. I do have some extra stuff though.

PS. if you did not have a clone of a working system, now (after you get it working again that is) would be a good time to start periodic backups.

I am hard on myself too.

Thanks Olof. I had a copy of the quicktime codecs in the Library on my macbook pro which I transferred to my mac pro, to no avail. I guess a complete reinstall is my destiny with, now that the codecs have fled the barn, a regular backup procedure.

Don't forget the FCS Remover tool to wipe off your previous install. YMMV

Used FCS remover and reinstalled and then updated via the automatic update and glory be we are back in business. Thanks gents!