I had the same problem in Ubuntu 11.04 64 bit.
This is what I have done to solve it:
cd /usr/lib/x86_64-linux-gnu sudo ln -s libX11.so.6 libX11.so
I had the same problem in Ubuntu 11.04 64 bit.
This is what I have done to solve it:
cd /usr/lib/ x86_64- linux-gnu
sudo ln -s libX11.so.6 libX11.so