My system is also 64 bit Ubuntu and met the same problem.
while doing
   ln -sf usr/lib/libtiff.so.4 /usr/lib/libtiff.so.3 
It works ok, so I guess you can try to create soft link instead of hard link~~
 
bin lv
 
 
2008-08-14

bin.lv

发件人: lan lin
发送时间: 2008-08-14  03:37:38
收件人: freesurfer@nmr.mgh.harvard.edu
抄送:
主题: [Freesurfer] error while loading shared libraries:libtiff.so.3

I'm using 64 bit Ubuntu and installed  freesurfer-Linux-rh9-stable-pub-v4.0.5-full.tar.gz

Everything worked fine when I tested the installation with tkmedit and tksurfer.
I then ran recon-all and got error message  while loading shared libraries:libtiff.so.3.
I have tried
ln /usr/lib/libtiff.so.4 /usr/lib/libtiff.so.3
 
But still got same error message.