I have a huge problem: my dialoge in ToB doesn't work! What I mean by this is that nothing at all shows up in the dialoge window. This basically means that the only time I can ever tell someone's saying something important is when the empty window shows up! Does anyone know how to fix this?

Sorry I don't know whats happening, have you tried downloading the latest patches from bioware?

have you installed any third party stuff? You seem to be having some problems with your dialog.tlk file.

1) Move saved game directory. 2) Uninstall. 3) Reinstall. Start a new game. Exit. 4) Move staved game directory from before on top of new one.

This exact problem happened to me. You didn't do the full install, did you? If you don't do the full one, you don't get the dialogue. I'd say re-installing it is your only option here.