Hello, mates.
I suppose that I'll not be able to help you, but I also can suspect that this is not an issue related to this distro. I'm using openSUSE 10.3 x86_64 time ago, and I haven't found any problem running C::B there.
When the 8.02 version was released, I installed the package from the 1-Click Install feature (using the TheTuxKeeper repos, if I'm not wrong). But only because I was curious to try it. In any case, I uninstalled that package (it worked correctly, though) and continued compiling C::B from their svn sources (currently build 5074), and always it has been running fine. BTW, I also compiled wxGTK from their sources (building C::B against my "custom" wx 2.8.7 unicode).
Maybe, you are using wrong wxGTK packages.
Regards.