Hi gobi!
I second uly's post. Also,if that doesn't seem to fix it,I've found that the stock pads or ANY carbon based pad, WILL 'smear' the rotor when run hard. Does it look like little 'comet-tails' coming from the drilled holes? If so, that's what's going on....see lunaticfringe for some good EBC HH pads and have your rotor glassbeaded to get all the old material off.