I am experiencing a strange problem with an NEC USB 2.0 PCMCIA card that I
have recently purchased. When the card is inserted, it is supposed to
1. NEC PCI to USB Enhanced Host Controller
2. NEC USB Open Host Controller (x2)
3. USB 2.0 Root Hub Device
4. USB Root Hub (x2)
1, 2, and 4 are installing without fault, except the USB 2.0 Root Hub
Device, which is reported within Device Manager as an Unknown Device. The
device status of the "Unknown Device" reports that no drivers are installed.
I think I am correct in assuming that this unknown device should be the USB
2.0 Root Hub Device, but it doesn't want to install the correct drivers.
There is no ? or ! indicating problems with the unknown device.
The card itself works fine with an external USB thumb drive and other USB
devices but whenever the PCMCIA card is removed from the laptop and inserted
again a balloon notification pops up on the screen and tells me 'USB Device
I have the same symptoms on Windows XP SP1 and SP2, and have installed all
the latest updates from Windows Update.
Unfortunately it would appear that the manufacturer does not have any
website offering technical support.
Thanks in advance.