hi,
i know nothing about mandrake but that libstdc++-librc6.2-2.so.3 is an old gcc2 library
libstdc++.so.5 is the modern gcc3 lib.
I'm assuming this program is precompiled using gcc2.96(or near that) so yes you need the library
one solution if your distribution does not provide it is to compile gcc2.95.3 yourself
http://www.linuxfromscratch.org/blfs...eral/gcc2.html
but i bet for backward compatability your distribution has the lib and it's in that libstdc++2.10-2.96-0.83mdk
package and no there is no confict -- you can have lots of old gcc libs