I'm almost sure your typing problem is a 'leading' problem - also if you draw a text box, you don't need to click enter at the end of your line, you just keep typing and it'll bop down a line when it reaches the end of the space. If there is still a huge gap, go to your 'character palatte' and change the values of the leading so your lines are closer together. If that doesn't work - shout again and someone will help

The only thing I can think of with your flood fill problem is that perhaps you've changed your paintbucket to the gradient tool somehow, in between uses ?? Makes no sense to me - you can always use 'hue and saturation' to change the colour of your mat too

... shout if these don't work for you