Hi there,

I have Compaq Presario B1800, windows XP (sp3).

Have a NEC chip Ritmo brand PCMCIA to USB 4 ports, all drivers installed on inserting card, in device manager it shows Standard enhanced PCI to USB Host controller along with several USB root hub listings. I insert a mouse and it installs itself and says is working properly however the mouse movement is very jumpy and slow to respond. Also when i try to intert usb hard drive it again installs but no extra drive shows up in c: drive but the lights come on the usb storage device.

I have updated bios, uninstalled and re-installed drivers, automatically selected the NEC drivers, have all windows updates and nothing has worked.

Any suggestions or troubleshooting would be great.