canon A720 usb camera not recognized

error in device mgr/usb "unknown device" . . the OS realizes a device has
been plugged in, but not what the device is . . . any ideas? Other devices
like mouse, flash mem, etc are fine in the same physical port . . .

John wrote:

> error in device mgr/usb "unknown device" . . the OS realizes a
> device has been plugged in, but not what the device is . . . any
> ideas? Other devices like mouse, flash mem, etc are fine in the same
> physical port . . .

====================================
The best way to eliminate this type of aggravation
is to use a USB Memory Card Reader. It will be
recognized as a Removable Disk and the pictures/
movie clips can be copied/pasted to the folder
of your choice.

Maybe the following article will offer something useful:

Downloading pictures
from your digital camera
http://tinyurl.com/8z2mn
or...
http://www.microsoft.com/windowsxp/u.../transfer.mspx


--

John Inzer
Digital Media MVP

Notice
This is not tech support
I am a volunteer

Solutions that work for
me may not work for you

Proceed at your own risk

"John" <John@discussions.microsoft.com> wrote in message
news:E8E70A7C-1D29-4683-94C0-687F20814439@microsoft.com...

> error in device mgr/usb "unknown device" . . the OS realizes a device has
> been plugged in, but not what the device is . . . any ideas? Other
> devices
> like mouse, flash mem, etc are fine in the same physical port . . .

There is a handy free prog for helping you see, and manage, what usb devices
are or have been connected to your pc: USBdeview:
http://www.nirsoft.net/utils/usb_devices_view.html
(I notice they now have similar progs for keeping track of wireless and
bluetooth too.)

I found it very helpful in trying to diagnose why my pc would recognise a
usb wireless adaptor, but laptop only did it for a few days and then
stopped. USB connections do seem to be rather temperamental, especially
when there is software on the device that has to be started and stopped
properly.

With our canon I deleted all the canon software from the pc in the end, and
just get at what is on the camera via My Computer (The camera does not show
up in the notification area as a usb device, just as a drive in MC)

(Do have a look at that usbdeview: you may be surprised at all the stuff
that has been connected at one time or another!)

S

John wrote:

> error in device mgr/usb "unknown device" . . the OS realizes a device has
> been plugged in, but not what the device is . . . any ideas? Other devices
> like mouse, flash mem, etc are fine in the same physical port . . .

Has it ever worked?

Devices like mouse, flash memory, etc nearly always work without
drivers, but I've yet to see a camera that did so.

Some devices require that you install the drivers *before* you plug the
device in. Some are so insistent on this that it seems likely that the
device won't ever work properly if you fail to heed this advice.

Did you follow the instructions for adding the device drivers?

--
Steve Swift
http://www.swiftys.org.uk/swifty.html
http://www.ringers.org.uk