options for rotating an object bug ?

I think something has change in my user preferences for rotating an object ?
win 8.1 2.7 RC2

I cannot find which parameters I need to change

got rotate around selection

one problem I have is that I cannot set rotate around selection
each time I reload file it is always reset = off!

anyone has experience this bug ?

seem to work on open CL build
so I tried to copy start file to 2.7 but it still refuses to work