should be a menu item called terminal. click on it and in the window type what has been mentioned before. have to know roots password

open a shell terminal like konsole, xterm or term and type....Icon looks like a monitor-screen
replace vi with your favourite editor program name (it must be installed)

If sudo does not work for you, type....
cheers Glenn

OK, I don't think I will get any more help here.
I give up. I just want to restore my system to the point it was before I install Linux and I promice I will never touch Linux again.
Edited:
Sorry, I wrote it before I read the two last posts; I'm getting frastrated!

Good luck!

Your only mistake was installing GNU/Linux with the other(M$-windows) harddrives detached.

All this has done is change the boot order.

If you can still boot window$, all is not lost.

Before you try again, read the install readme, have at least one partition available

and don't change the system specifically for installing GNU/Linux, it really is smarter than winblow$.

Any other questions, just ask.

Glenn