Well, I just wasted a couple of hours on the phone.  QB started once and wouldn't start again - shuts down before you can access help or anything else.  The only way we have been able to operate the program is by pulling the ethernet connection.  It works offline, but after so long this will be an issue with tax updates.  After a couple of payrolls are complete, I'll try the Chrome addition and the homepage preference and see if that helps.  This is extremely frustrating with the forced update.