http://i38.tinypic.com/11lodfp.png

That pic and the title should be enough info..


What can I do..!??!?!

You seem to be having a permission problem.


Provide more details about your distro, users, ...

does the user have a home directory?

Read the output of

#man chown

In Linux every file (directories, devices are all files) has at least one owner. Without suitable permissions others cannot read/write to them.

Well never mind..

It seems that my computer was full..

I tried running a program with Wine.. it crashed my laptop and needed to be restarted..

I restarted it and got an old error I had once before (a very major one) and I had to re-format the whole thing in-order to get it to run..

I'm not 100% sure but I think the problem is now gone since I formatted everything.. :/

Probably

That is one of the reasons that you should keep your personal files (/home) on a partition of their own.

permissions problem.
su as root and change them.

Formating usually fixes everything. But then so does reinstalling.
Sorry you had to do that.

He/She very probably did not have to do that.
The default when creating filesystems is to create them with some room to spare (5%) - ony accessible/usable by the root user.
So: even if the filesystem appears to be full - it is only full for users - not for root.
Log in as root - delete the files to make room - voila...

Thanks jomen,
I was just browsing when I came accross this. I am glad you reminded me of this "feature". By the way, is this a general rule or is this only on a specific distro?

Any distro, its a matter of putting /root on its own partition. On a prodn system you'll usually/often find /var is on its own partition for the same reason ie that's where most logging goes, so most likely to fill up first. Doesn't stop people logging on.

I have to slightly disagree - it seems weare talking about different things:
when a ext2/ext3 filesystem is created and there is no -m option given to mkfs.ext2/mkfs.ext3 then, by default, it will be created with 5% of the space only accessible to the root user - this has nothing to do with separate partitions.
I'm not sure (I don't know) how creating another filesystem like reiserfs ... handles this.
Separate important system partitions can also help preventing a user completely filling up a filesystem because he has no write permissions on them anyway.
In both cases - root can still fill anything up.