I work with Cs5, this is the only place I can think to come to find advice on how to get rid of short cut - hot key noise. while coloring a comic page I rotate between Lasso, Pen, fill and brush. Quite frequently when I switch to "G" key to fill the program "DINGS" at me as if I did something wrong. Is this common? how do I stop this from happening, I hate it, it drags me out of any work flow zen I manage to conjure.