If you come to this section and you have followed all the instructions above, you probably encountered the problem of different Linux distributions, some of which do not keep stuff where it should normally be, but somewhere else. The Suse Linux distributions are most famous for such stupid quirks, but there may be others having similar problems. If you encounter such a thing and you find the cause for the trouble—and hopefully a solution—please let me know and I will add this to my HOWTO.
I think this section will never really be complete, but I will list some possible errors and solutions for these issues.