Unable to login in X windows in FC4

[D G]

Hi..

Recently I have started having this problem that no user other than
root can login through X-windows on gnome / kde. If I use
enlightenment I can login however I cannot open firefox / mozilla /
thunderbird.

I am attaching an output of my /var/log/messages... Initially i tried
to log on as a normal user and then as root. The latter succeeded.
goks is the name of my machine as well as the name of the user that
I'm trying to log in with.

Nov  6 13:03:10 goks kde(pam_unix)[3261]: session opened for user goks
by (uid=0)
Nov  6 13:03:10 goks -:0[3261]: Warning!  Could not get current
context for /dev/:0, not relabeling.
Nov  6 13:03:11 goks kde(pam_unix)[3261]: session closed for user goks
Nov  6 13:04:06 goks kdm: :0[3376]: pam_timestamp: timestamp file
`/var/run/sudo/root/:0' is older than oldest login, disallowing access
to kde for user root
Nov  6 13:04:06 goks kde(pam_unix)[3376]: session opened for user root
by (uid=0)
Nov  6 13:04:06 goks -:0[3376]: Warning!  Could not get current
context for /dev/:0, not relabeling.
Nov  6 13:04:06 goks gconfd (root-3452): starting (version 2.12.0),
pid 3452 user 'root'
Nov  6 13:04:06 goks gconfd (root-3452): Resolved address
"xml:readonly:/etc/gconf/gconf.xml.mandatory" to a read-only
configuration source at position 0
Nov  6 13:04:06 goks gconfd (root-3452): Resolved address
"xml:readwrite:/root/.gconf" to a writable configuration source at
position 1
Nov  6 13:04:06 goks gconfd (root-3452): Resolved address
"xml:readonly:/etc/gconf/gconf.xml.defaults" to a read-only
configuration source at position 2
Nov  6 13:04:12 goks gconfd (root-3452): Resolved address
"xml:readwrite:/root/.gconf" to a writable configuration source at
position 0

If it is of relevance I updated my packages using yum. Gstreamer
seemed to have an unresolved dependency so I excluded it from being
updated. Could anyone give me a clue as to what may be wrong?

TIA

Dattatraya