Samsung MFP SF-565P (Boy, do I feel dumb)
The Samsung SF-565P is a fancy multi-function printer (MFP) that crams a 600 dpi laser printer, a fax machine, a (300x300 dpi) copier, and a (200x200 dpi) scanner into one box. Naturally, it works beautifully with Windows. It also comes with proprietary Linux (RPM-based) drivers on a CD-ROM.
Instead of installing the drivers off the supplied CD, I tried installing them from a download off Samsung's web site. That didn't work. It didn't work for SuSE 9.1, SuSE 9.2, Mandrake 10, or Fedora Core 3. It was fun trying them all out, of course...
I reinstalled SuSE 9.1, and tried installing the drivers off the supplied CD, and it works fine. Sigh.