I am on Fresh 4.1.0.1 B1. I too had the fc's on Voice search and Superuser. I was able to uninstall Voice search with TB and reinstall it from the market, and that seems to have fixed that. I reinstalled busybox, fixed permissions and rebooted several times, but Superuser still fc's. If I clear data on Superuser it will work one time then fc after that. Any ideas?