Fedora 17 - Logging in after selecting source kicks me out to the login screen

Hi Gurus,

This is Vivek, iam very new to linux desktop environments. I have been using Fedora 17 for my official work from the last couple of months and i feel this to be very light on applications and fast when compared to Windows.

Ok, now the problem is I was trying to have the feel and look of Mac OSX Lion theme on my existing Fedora 17 desktop. I have installed the required rpm "fedoramd-release-17.rpm" and rebooted the machine. Now, i have the new option on the login screen to select from source i.e., 'enligtenment' and 'gnome'. When i select enligtenment and supply my login credentials n hit go, this kicks me back to the login screen again. This is not letting me what i wish to desire.

Please help me, if iam missing anything here.

Steps done:

shell> su -c 'rpm -Uvh http://repo.fedora.md/fmd/fedora/fed...release-17.rpm'
shell> su -c 'yum install enlightenment exchange'

My Machine details:

Gnome version 3.4.2
Fedorar 17
Memory: 8gig
Processor: Intel® Core™ i5 CPU M 560 @ 2.67GHz × 4
Graphics: Intel® Ironlake Mobile
OS type: 64 bit
Disk: 320 gig

Here is what i see in .xsession-errors.old

************************************************** *******
ESTART: 0.00000 [0.00000] - Begin Startup
ESTART: 0.00004 [0.00004] - Signal Trap
ESTART: 0.00005 [0.00001] - Signal Trap Done
ESTART: 0.00007 [0.00002] - Eina Init
ESTART: 0.00077 [0.00069] - Eina Init Done
ESTART: 0.00077 [0.00000] - Determine Prefix
INF<e>e_prefix.c:25 =================================
INF<e>e_prefix.c:26 Enlightenment relocation handling
INF<e>e_prefix.c:27 =================================
INF<e>e_prefix.c:28 PREFIX: /usr
INF<e>e_prefix.c:29 BINDIR: /usr/bin
INF<e>e_prefix.c:30 LIBDIR: /usr/lib64
INF<e>e_prefix.c:31 DATADIR: /usr/share/enlightenment
INF<e>e_prefix.c:32 LOCALE: /usr/share/locale
INF<e>e_prefix.c:33 =================================
ESTART: 0.00087 [0.00010] - Determine Prefix Done
ESTART: 0.00092 [0.00005] - Environment Variables
ESTART: 0.00094 [0.00002] - Environment Variables Done
ESTART: 0.00094 [0.00000] - Parse Arguments
ESTART: 0.00095 [0.00001] - Parse Arguments Done
ESTART: 0.00095 [0.00000] - Eet Init
ESTART: 0.00224 [0.00129] - Eet Init Done
ESTART: 0.00225 [0.00001] - Ecore Init
ESTART: 0.00242 [0.00017] - Ecore Init Done
ESTART: 0.00243 [0.00001] - EIO Init
<<<< Enlightenment Error >>>>
Enlightenment cannot initialize EIO!

E17: Begin Shutdown Procedure!

************************************************** *

' /var/log/Xorg.0.log.old', this file contains a lot of data in it.