I ordered a new GPU. It is ATI Radeon X1950Pro. I purchased the card from local vendor for my desktop. It has Windows Vista 32bit. I downloaded catalyst_8-31-100_vista32_rtm drivers from the official website and installed the same. After checking in Device Manager I found that there is some unknown NTatvrv01 device appeared. There is no driver installed. It has a question mark on it. What does this device do. It appeared only after when the gpu drivers are added. Does living the same as it is will put some adverse effect on the same.