Is it specific file that causes the crash, or does it crash with different file formats (.wav, mp3, ect.)?
Are there any plug-ins/chains running?
Have you tried reinstalling? I recommend you try uninstalling SF Pro-13 with a third-party uninstaller that also removes leftover register entries (the OS uninstall does not). Then reinstall Pro 13. Myself and others like the Revo Uninstaller, which has a freeware version as well as a pro version.