COD2

Hi GUYS..................Ive been trying to get into COD 2 but when I get to
nearing completion ie waiting for the map to update or load im getting the
following message............................HELP

"Impure client detected invalid .IWD files referenced. C:|Program
Files\Activision\ Call of Duty 2|main\z65.IWD"

Plus I have put your COD 2 into my favourites but when I try and refresh
thefavourites it does not appear, its as though there is no details, I have
deleted it and put it in again to no avail.

Please help with solution, cheers

Dave