USB Driver problems

[Guest JR]

I have a w2k machine, up to date, with both external usb devices, memory

sticks etc. as well as an internal card reader using 2 USB internal ports.

 

Works fine most of the time and WIN2k allocates 2 drive letters (left and

right slot)

 

Occasionally this would not be seen by the system. Now it is permanent!

 

Win2k shows the two drive letters, but device manager show and "unknown" usb

device.

 

I have set variable so I can see uninstalled devices etc. and have removed

all disk drives not in use and also all old USB devices. Only change is

that W2k no longer shows drive letters.

 

Uninstalling unknown device then searching for new devices brings up "Found

unknown device" and "searching for drivers". This then falls over every time

with error message "An error occurred during the installation of the

device. The installation failed because a function driver was not specified

for this device occurrence "

 

Not a registry entry to best of knowledge as tried a very early backup. Not

a USB conflict as removed all other physical devices to check.

 

PLEASE, any clues. Nothing found on knowledge base. BUT have had a similar

problem before with cd/dvd drives and had to remove an atapi registry entry

to get drives back.

 

Thanks for any help,

John Richards

Somerset