Cannot enter my GNOME

[wa2n]

Hi ...

My Linux cannot enter the GNOME desktop, it's just shows a processing mouse pointer. That's all, and nothing happen. It doesn't even shows me a login form. It has no problem before, everything goes fine and I can login normally. Until it ask a filesystem check (fsck) manually. So I type fsck and enter, and restart the system.

But the problem now is Linux doesn't even show me a login form, except the mouse pointer. I've tried Ctrl+Alt+F1 and login via text mode, but still, I cannot start my GNOME desktop. Can anyone explain to me? What should I do? I am not an expert on Linux, so please answer clearly. Sorry for my bad bad English.

Any replies would be greatly appreciated.
Thanks

[Husse]

So I type fsck

When did you do that?
Rather at what stage of the boot ....

[wa2n]

When I try to boot normally, it gives me an error message like this

/dev/hda1: UNEXPECTED INCONSISTENCY; RUN fsck manually.
(i.e.; without -a or -p options)
[FAILED]
Give root password for maintenance
(or type Control-D for normal startup):

So I restart and boot under recovery mode, and after it shows me a root prompt, I type fsck (enter). Then I restart again try to boot normally. But it only shows me a mouse pointer, no login form.

Any suggestion?