I have a question about Darkness Approaches and the changing of monster battle positions:

Darkness Approaches
Spell Card [SRL-EN040]
Discard 2 cards from your hand. Select 1 face-up monster and flip it face-down, but do not change its battle position.

Can a monster that has manually switched positions or been summoned be flipped from face-down Attack positon to face up Attack position during the same turn? The card even states that you do not change battle positions when it goes face-down, so it would seem safe to assume the same thing when fliped face-up again.

There's a huge discussion about it a few threads down

http://www.ccgrealms.com/forum/showthread.php?t=492804
This all should answer your questions.

It doesn't. Sirus had a question in there that was never properly answered.

I dont really know what your definition of "answered" is, but it was answered sufficiently.

You are only allowed one manual position change per turn. That INCLUDES changing from face-down attack to face-up attack. Any time you change a monsters position without a effect, even if it remains in the same Battle Position, it is still considered a "Manual Change", to which again, you may only do once per turn, and only if the monster has not attacked that turn, or was Summoned or Set during that turn.

Thank you. You didn't tell that to Sirus however, which is why I made this.