I tried three webcam, none of them can be recognized by any application. When I plug in the webcam the first time, computer recognized the new hardware, by found some error during the installation (didn't say what error).On the control panel, system hardware, it shows the question mark on this hardware. The software came with the webcam also can't recognize the webcam. It happened one month ago. I was fine before. Inspiron6000 with XP. Thanks.