You mention in another thread that you use CDFileSystem as the filesystem with your DVD drive, and I think this might be the reason for your problems. The thing is that CDFileSystem only supports file names in the 8.3 format, which means that all icons will end with .INF instead of .info in the names. Was there any error messages upon installing AmigaOS? Did you create an Emergency Disk and then boot from this before installing AmigaOS 3.9?