I've got some strange problems with GRUB etc...
so i will try SGD.
When i boot from the Super Grub Disk Cdrom everything is okay, but when i am in the GNU/Linux menu (Fix Boot of Gnu/Linux (GRUB), Boot Gnu/Linux, Boot Gnu/Linux Directly, Gnu/Linux (Advanced))
and select something it just flashes a blue menu and then it stands "selectfile XXX" where X is some path to some file.
I've also tried other versions of SGD with the same problem.
Thanks for help!