Quote Originally Posted by 'Cesare',index.php?page=Thread&postID=141162#post1 41162

Quote Originally Posted by 'keyclone',index.php?page=Thread&postID=140852#pos t140852
this is a known bug with some systems when you try to close using the X in the upper right

instead, right-click the keyclone tool tray icon and select exit
I have the same problem, and indeed via the trayicon it can be shut down normally.

Just for debuggingpurposes, I'd thought to mention it here anyway:
I'm running Vista-64-Ultimate on a Quadcore processor. Let me know if you want some more information about the system.
Also, I had this problem on Vista 32 Business as well... I swear it started happening after I turned off Aero but haven't turned it on again to verify or not, so wild assumptions ftw for now.