i just lapped the core on my card in my sig... before i did this it had lots of white dots on the test in 3dmark 01 with the spinning horse... now there are only like 2 or 3... i also found that once you sand on it for a while there is actually copper under there! i am just glad the card still works! LOL ... i love this card, i can score well over 15,000 in 01 and i think just over 2,000 in 03.... i can also get over 20,000 in aquamark.