I have washed my disco II twice now since I bought it last week. When drying the car and also spray waxing I've noticed the trim on the back windows, when wiped, smears this nasty black stuff all over. When it gets on the paint it is difficult to remove and I can't seem to make it stop smearing. WTH is this stuff? Why would it be doing this?

It's quite irritating and it is making a huge mess. Anyone else have this problem? Any solutions?

Thanks,

Chris