So I recently got Photoshop CS4 and decided that I would try to make some cool pic to put up as my avatar. I finally finished inking it with the pen tool, and was going to color it. I tried to get a color from a different picture to start coloring, than something screwy happened. I don't know what. I don't know how. I took some screen shots below. It is for some unfathomable reason stuck in greyscale slider, and painting over it puts on a translucent red.
You're in quickmask; hit the 'q' key (that's the key for CS, dunno about CS4). I don't for the life of me know what it's for, but I occasionally hit 'q' and it throws off my groove.
If "q" doesn't work, in the toolbar on the left, all the way at the bottom there's a rectangle with a circle in it (currently pressed in your screenshot), click it again to deactivate quickmask. I believe quickmask is used to get selections easily, by drawing them; if you leave quickmask, that which is selected (the reddish like parts) will form a selection.
