A few days ago I was contacted by a publisher to do a cover photo for a magazine and they specified needing a large file size. I currently shoot with a Canon 5D and at 12 MP they weren't sure the files would be large enough for their needs, so I rented a 1DS MarkIII for the shoot. After taking some really nice shots on this and several other jobs I finally get a chance to load the memory card onto my computer this afternoon and can't open the raw files. I am using a Macintosh G5 with Adobe CS3 and have never had this problem before. I tried downloading updates and they completely froze the Bridge browser application. I uninstalled and then re-installed the software and it works fine for opening previous raw, photoshop and jpeg files but still wont open the MarkIII raw files. I've been through this process twice now and can't think what else to do. Has anyone had this problem before? I'm really stressed about this and could really use some help, any ideas?