There is a driver disk (CD-ROM )provided in the box that the USB card came in, correct? If so then there should be a setup program that is activated when you put the CD-ROM disk in. Just follow the prompts. However, if the "Add New Hardware Wizard" comes up, then press cancel. You might have to do this several times as Windows XP detects your new USB card, just keep pressing cancel. You want to use the setup program provided on the CD-ROM disk to install the driver and not the "Add New Hardware" wizard. If you still have problems, let me know what brand and model number of USB card you have and I'll look at the manufacturers' website for further help.

Regards,

Brian