New iMac and Aperture not loading .CR2 files? Any ideas?

Hi, I have recently upgraded from a 2009 MBP (running 10.6) to a 27" iMac. What I am finding is that after migrating my applications Aperture will not load/show my CR2 files. It says they are an unsupported format. Any ideas for a solution? These files are stored on an external drive and open fine in photoshop CS5... I have tried installing Camera Raw 6.4.1 updater... PLEASE HELP! Thanks

Reinstalling Aperture may work but as the RAW conversion is external to Aperture (all Apple programs that can work with RAW filles use the same conversion process) I'm not sure it's going to help.
If re-installing Aperture doesn;t fix the problem have a look in /System/Library/CoreServices for two bundles:
CoreTypes.bundle
RawCamera.bundle
Highlight each in turn and do a Get Info. The CoresTypes.bundle showuld be version 301.21 and the RawCamera..bumdle should be 3.9
If you still have the problem post back.
good luck

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