EF Launcher fails immediately after start

EF Launcher fails immediately after start.
1. Had COH 2.601
2. Installed EF 1.40
3. Run EF which led to update
3. Installed patch to COH 2.602
4. Unable to run EF

Here is EF lanucher log:
######    Eastern Front Launcher Log  ######
###### http://www.easternfront.org/ ######

Created : 28.5.2011 22:36:45
OS Build : Microsoft Windows NT 6.1.7600.0
Launcher Version: [IP address redacted]

##############################################################
28.5.2011 22:36:45 : MESSAGE : Creating a new instance of Eastern Front Launcher...
28.5.2011 22:36:45 : MESSAGE : Initializing...
28.5.2011 22:36:45 : MESSAGE : Checking language file version...
28.5.2011 22:36:45 : MESSAGE : Language file check passed.
28.5.2011 22:36:45 : MESSAGE : Creating tooltips...
28.5.2011 22:36:45 : MESSAGE : Tooltips created.
28.5.2011 22:36:45 : MESSAGE : Initialized Succesfully.
28.5.2011 22:36:45 : MESSAGE : Preparing to check for updates...
28.5.2011 22:36:45 : MESSAGE : Creating update thread...
28.5.2011 22:36:45 : MESSAGE : Updated thread started.
28.5.2011 22:36:45 : MESSAGE : Gathering update information...
28.5.2011 22:36:46 : ERROR : The remote server returned an error: (503) Server Unavailable.

Any idea.
Thanks a lot.

I had this happen, Restarting my PC actually cured it. Don't know why it took me 2 days to try but if you haven't tried this, give it a shot.

How strange! Last night I reinstalled the whole game, patched to 2.602, installed EF1.4, no more than these, and I enjoyed the MOD happily.

This morning, the EF Launcher fails immediately after start,and I have to disable the Auto update…… ???