Ctrl+Q - stopped showing in which class/interface method was declared

As far as I remember, Ctrl+Q-ing some method was always showing what class or interface it's defined in (declared).

For example: http://img295.imageshack.us/img295/2722/60570267ak1.png - I Ctrl+Q "putIfAbsent()" method of ConcurrentHashMap but would like to know where exactly it was defined - is it ConcurrentHashMap class or ConcurrentMap interface or Map interface or Object class ? (kidding about the last two, of course, but I think you get an idea)

Selena 6733, WinXP SP2

Thank you !