With all updates installed I can also confirm this bug.
The titlebar gets truncated after switching between a maximized and a non maximized Window 2 to 3 times. The way compiz truncates the title bar is always exactly the same, and when you drive with the mouse over it everything is alright.
System: Feisty 7.04 stable
Graphics Driver: nvidia / Geforce 2 MX 400
Attached is a screenshot of the problem