Four times in the last week I've woken my SP3 to find that I was unable to log in, and even standard shutdown or reboot failed to render any improvement. On three of these occasions (first, second and fourth), I had in yellow text on a black background the message 'the number of connections to this computer is limited and all connections are in use right now. Try connecting later or contact your system administrator', with a box to click OK. (Where is the 'Not OK at all' box?). Th third time I had a windowed dialog titled 'Sign-in process initialization failure' which stated that 'Sign-in process initialization has failed. Please check the event log for details'. I was able to use another device to find the two-button shutdown as a remedy that worked when a standard reboot failed. I've had my best attempt at finding relevant info from the event log, but to no avail. A cold boot losing all open files and session data is a pretty crap way to wake a 21st century flagship PC - any ideas out there?