Ok, so it took me forever to figure out what was stealing my window focus.. turns out it VProConsole
I'm running Ghost 14, Windows XPPro x64 latest updates.
If you double click the task tray icon, then go to View -> Progress and Performance
Then click Hide.
Then minimize the Ghost window.
Then every few seconds, VProConsole makes itself active (looks like a second process is created and destroyed) then returns focus to whatever window was active before it stole it.
Can anyone else reproduce this issue?