[robotmay]

I have it running fine under 64-bit Ubuntu, sounds like it might be a problem with KDE. Have you tried looking around for other packages for it?

[guard-of-terra]

Should I? I've added an entire repository, they have all means to deliver just the right package to me, and they fail it.

This doesn't sound like a KDE problem:

    % ldd `which xflux`
        linux-gate.so.1 =>  (0xf773b000)
        libXxf86vm.so.1 => not found
        libXext.so.6 => not found
        libX11.so.6 => not found
        libstdc++.so.6 => not found
        libm.so.6 => /lib32/libm.so.6 (0xf76f6000)
        libgcc_s.so.1 => not found
        libc.so.6 => /lib32/libc.so.6 (0xf754e000)
        /lib/ld-linux.so.2 (0xf773c000)