Had a customer update automatically 2 sites from 1.4.1 to 1.4.2, sites then stopped rendering (all white pages, from the home page on). So, the update did not have good effects for their sites (www.calvaryhampton.org and http://www.calvary-kids.com). Both hosted on Linux servers at hosting.com. Removing the plugin via ftp brought them back up, then reinstalled 1.4.1 and all is well. Let me know if you need more info.