Well, unfortunately I hope that there is something wrong with the mini... OSX seemes just fine operating system, but for my needs and preferences I would like to use native linux, especially debian based distro. It is just so much more flexible than *BSD.
Tomorrow I'll go to the local Apple service center to test the linuxCDs with other macs and try out original Windows cd on my mini. If that doesn't give results... well, I guess I just have to start learning OSX
Thanks for being interested,
Tuomas