usb device problems

[Rich Price]

i have two xp computers on a wireless network using usb
wireless adaptors. each computer has one other usb device
(broadband modem and printer) all on the rear usb ports.
everything was working fine until i bought a pentax optio
digital camera and plugged into the front port of
computer#1 and got a "usb device has malfunctioned"
message. plugging into the rear port was no problem - the
thing worked immediately.

i checked the wiring on the usb header and the D+ and D-
wires are reversed compared to the mobo manual. when i
switched them, rebooted and plugged in the camera i got
nothing - the device wasn't even recognised. i've tried
uninstall/reinstall on the usb hubs/controllers but all
that's happened is that my wireless adaptor won't work
now!! the device installs ok and when configured comes up
as working but after a few seconds it disconnects and
won't reconnect. device manager mostly says the device is
working ok but i have seen a code10 error message if i
check straight after booting up.

throughout all this my modem works no matter what. i
could unplug, put it in the dishwasher, reconnect and it
would work fine but the wireless adaptor - no way. i also
plugged the camera into the other computer (no driver
installed) and i got an "unknown usb device" message as
expected. at the same time though, the wireless adaptor
icon disappeared from the system tray and the adaptor
disappeared from device manager. when i unplugged and
rebooted it came back working fine.

i would really appreciate general advice on how my usb
system is working (or not) as well as any suggested fixes.

 

[Rich Barry]

Rich, did you reinstall the wiring to the original positions?

 

[Guest]

No, not yet. I've been advised to do that and clear the
BIOS but I wanted to get a "total solution" to the
problem rather than tackle it piecemeal. Should I do
rewire and clear BIOS as afirst step?

 

[Rich Barry]

Yes, that's sounds like a plan.

No, not yet. I've been advised to do that and clear the
BIOS but I wanted to get a "total solution" to the
problem rather than tackle it piecemeal. Should I do
rewire and clear BIOS as afirst step?

 

[Guest]

OK I'll do that (tomorrow-it's 11pm here). Any thoughts
on the other aspects of the problem esp. why the wireless
adaptor disappears on computer#2 when the camera is
connected?