For example (lets say all cells have black text):
06 Aug 2007
07 Aug 2007
08 Aug 2007

If today is 06 Aug 2007, nothing happens, all cells have black text. Go to
sleep... now its 07 Aug 2007.

Is there a way to cross/tick off the previous days automatically with a
formula or conditional format? I want to make the text turn to red, eg. in
our above example 06 Aug 2007 should now turn red because we are now 07 Aug
2007.

Thanks in advance for some replies!! (I hope)