I have just bought a USB Infrared adapter however I'm having trouble installing it on my WinXP machine. My OS is asking me to install an additional driver for a "USB-Serial Controller" which it had found just after i installed the drivers for the IR adapter. I don't know what this controller is needed for since i don't have any USB to Serial adapters... maybe the IRa is using serial communication over USB. In any case, I just could not find the driver neither on the motherboard driver cd nor on the IRa installation disk. The IRa in question is a MA620 USB Infrared Adapter .
Can anyone please help me find a solution for this problem?

Thanks in advance