I'm with you, Lou. My inbox stopped synchronizing on April 3 for no apparent reason; Web-based access to my paid Hotmail account (of over 6 years) still functions. Not much help to be found from Microsoft on the Connector, and I'm resisting going the paid support route for this. I've removed the Hotmail account from Outlook, then re-created it. Then even removed the account, uninstalled Connector, made sure ALL Outlook patches were installed, downloaded the current Connector v12.0.4518.1068, installed it, re-created the Hotmail account...and nada. The log says I successfully sign-in, then I get both the bogus 4350 error, plus one without a number that says an "unknown error was encountered," and to check the "Synch Issues folder." But there's no longer a Synch Issues folder locally or via the Web interface. I've been using Connector since Hotmail went to "LiveMail" with varied success, but never outright, unrecoverable failure. Now I'm dead in the water and MS seems to offer no support for the product save less than a handful of KB articles, none of which apply.