I followed the instructions...

When linux starts up and loads X-server, I type in my login and KDE trys to start, but it gets an error and logs back out. (for ALL users, even root). I try to log in on terminal, when I get in I can only run the cd command, all other commands I know (find, ls, cat, joe, vi, su, etc) aren't recognised.

I think that screwed something up, because it's the only thing I changed...I can run all commands in rescue mode, but when I try to edit the profile file, it looks like it's unedited from before (no java path)...whats going on here?