Hello, everyone:

I am very new here.
I have a problem when I installed pymol, it said that libstdc++.so.5 is not found. I only has libstdc++.so.6, no .5. what can I do it?

here is the ldd pymol.exe:

linux-gate.so.1 => (0xffffe000)
libpthread.so.0 => /lib/libpthread.so.0 (0x48146000)
libutil.so.1 => /lib/libutil.so.1 (0x4905f000)
libGL.so.1 => /usr/lib/libGL.so.1 (0xf7f40000)
libGLU.so.1 => /usr/lib/libGLU.so.1 (0xf7ec0000)
libXi.so.6 => /usr/lib/libXi.so.6 (0x48762000)
libXmu.so.6 => /usr/lib/libXmu.so.6 (0xf7ea8000)
libdl.so.2 => /lib/libdl.so.2 (0x48193000)
libstdc++.so.5 => not found
libm.so.6 => /lib/libm.so.6 (0x4815f000)
libgcc_s.so.1 => /lib/libgcc_s.so.1 (0x48b23000)
libc.so.6 => /lib/libc.so.6 (0x48007000)
libXext.so.6 => /usr/lib/libXext.so.6 (0x48777000)
libX11.so.6 => /usr/lib/libX11.so.6 (0x48282000)
/lib/ld-linux.so.2 (0x47fea000)
libGLcore.so.1 => /usr/lib/libGLcore.so.1 (0xf7105000)
libnvidia-tls.so.1 => /usr/lib/tls/libnvidia-tls.so.1 (0xf7103000)
libstdc++.so.6 => /usr/lib/libstdc++.so.6 (0x485df000)
libXt.so.6 => /usr/lib/libXt.so.6 (0xf70ab000)
libXau.so.6 => /usr/lib/libXau.so.6 (0x48387000)
libXdmcp.so.6 => /usr/lib/libXdmcp.so.6 (0x4827a000)
libSM.so.6 => /usr/lib/libSM.so.6 (0xf70a2000)
libICE.so.6 => /usr/lib/libICE.so.6 (0x48c63000)

Is anyone has any suggestion? I am so grateful for your great help. Thanks very much.

Install libstdc++ 5 using your package manager.

I tried to install libstdc++5 by yum, it didn't work, yum finally said nothing to do. I tried to download from web, neither one work. I want to find one whichis for 64bit machine. thanks.

Build PyMOL from source. If that is not an option, then you may wish to consider paying the developers to do that work for you by purchasing a PyMOL Maintenance Subscription (see http://pymol.org/funding.html).