I'm on version 5.5.0.124 - here's how to sign off:
At the top of the Contacts list (compact view mode) or above your name (default view) there is a row of commands: Skype Contacts Call View Tools Help
Click on Skype -> Sign Out.
________________________________________________________________________________________________________ If a suggested idea resolves your question, please click on the "Accept as Solution" button so everyone else will see what works! -> Please send Private Messages only upon request. -> Good reads: Devise good passwords and stop password attacks and http://krebsonsecurity.com/2011/05/krebss-3-basic-rules-for-online-safety/ and this one, too: http://www.rd.com/slideshows/internet-security-how-not-to-get-hacked/
