thank you for replying...
I know my question is not very clear beacue I'm really a dummy in Unix and I just started using it...

I installed cygwin/x and then I changed the shell from bash to tcsh...now when I start it by clicking on startxwin.bat I get a window without scrollbar. So, the commands start to disappear from the top of the page when I go over one page. So, I can't go back and look at them. And, when I do shift+page up I get "2A".