Testdisk Won't run - Cannot find libntfs.so.9

[Friedrich]

testdisk: error while loading shared libraries: libntfs.so.9: cannot open shared object file: no such file or directory

there is (Knoppix 5.1.1) no libntfs.so.9 (in /usr/lib/) but:
libntfs.so -> libntfs.so.10.0.0
libntfs.so.10 -> libntfs.so.10.0.0

what do you think about this:
rootwindow

cd /usr/lib
ln -s libntfs.so.10.0.0 libntfs.so.9

now testdisk will run