You should be able to open autorun.inf in Notepad or any text editor to see what it's calling.Aside from that, was this a stock card that came in the PDN or did you buy this and swap it in? If you bought it, where did you buy it? And did you format it before putting it into your PDN?Some of the cheapo cards from overseas sometimes come with virii and trojans on them. They need to be formatted before use. And turning off Autorun on your drives is good security practice.