Just recently I finished my friend's site on my local wamp server. Looks great on that server. Now I tried to migrate the site to a Godaddy shared hosting account. I was able to get it all setup with the database up to date and everything, but the second I log in the the backend of Drupal, it white screens. Again tried a different browser, the site came up fine until I logged into the admin again. At this point I can't get any page to load, not even the home page. I can delete my cookies in the browser to log myself out but that's about it. So stumped its not even funny...
Check the official Drupal page for "white screen of death" (WSOD), you will useful guidance to help you to find the problem.
As my suggestion, enable temporaly the error report for php, adding on the index.php the following lines:
error_reporting(E_ALL); ini_set('display_errors', TRUE); ini_set('display_startup_errors', TRUE);
Another thing that you could do is to go to admin page of your Godaddy shared hosting account and enable the option error.
A last thing, check if you have copied the .htaccess file too on the directory of the web hosting server.
I solved it!
The PHP version on the live Godaddy server was incompatible with my specific build of Drupal. The PHP version was set to 5.2 and I was able to change it to 5.3. This fixed my WSOD problems when I logged in as admin to the live server.
Thank you everyone for the much appreciated help and support!
Look in the PHP logs: http://support.godaddy.com/help/article/1197/working-with-error-logs and see what the error is. I would post it back here and someone may be able to give you a specific resolution.
You can try running update.php, which may fix the issue. You can update the setting update_free_access=TRUE in your settings.php file: https://drupal.org/upgrade/running-update-php
That being said, the correct way to move to a production site is to back up your /sites folder, and do a fresh install of drupal on the production server. Replace everything but the /sites/default/settings.php file with your backed up /sites folder.
More here on migrating a development instance of Drupal to a live development server: https://drupal.org/node/501724