Do you miss something on BrainKing.com and would you like to see it here? Post your request into this board! If there is a more specific board for the request, (i.e. game rule changes etc) then it should be posted and discussed on that specific board.
pgt: I think that what happens when you change your "weekend days" is that "automatic vacation" gets turned off, and then you have to go back and turn it on again.
At least that is what happened to me the past time I changed my weekend days....