USB device not recognized ... any help ?

Hey guys,
So i went to plug my iPhone 3G into my PC running Windows Vista and it comes up with the error message,
"USB Device Not Recognized
One of the USB devices attached to this computer has malfunctioned, and Windows does not recognize it."
Last time this happened I uninstalled the USB Root Hubs on my computer and when they reinstalled my iPhone connected, but it has happened again and this method no longer works.
I've tried restoring my phone, turning it on and off, i tried stopping my computer from turning off my USB ports but to no avail...its getting very frustrating because i can't sync my phone
ANY suggestions would be great PLEASEEEE!
Message was edited by: chris__robin

Try a different port and a different USB cable.

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Well start with these articles and see if that gets you anywhere...
iPod is not recognized properly by computer when USB drivers are not installed properly or are out of date
http://docs.info.apple.com/article.html?artnum=305136
iTunes for Windows: iTunes 7 doesn't recognize iPod
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http://docs.info.apple.com/article.html?artnum=61711
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I have a brand new 5th gen (I think) iPod.
I have been able to connect it successfully to my home laptop, download music to it and play it so I know the iPod works per se and the cable is ok too.
Now at work (where tons of my music is) when I connect it to my PC here and I get a "USB Device Not Recognized" error pops up from my taskbar. When I click on the message it pops up a "USB Device Not Recognized" window which displays a list of USB ports, and shows "Unknown Device" for the one where the iPod is connected.
I think its probably USB1.something as opposed to USB2.0 but from what I understand that shouldn't matter.
Can anyone suggest anything ?
I've tried the 5R's as far as I can, and I read through this thread:
http://discussions.apple.com/thread.jspa?threadID=500559&tstart=15
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First make sure the latest iTUnes is installed on this work PC, IF your allowed to install things on it, the latest iTunes version is 6.0.4.2 and can be downloaded from the apple site (Hit iPod+iTunes tab at the very top of this web page)
Another thing is what version of windows is the work PC? Is it windows XP Windows 2000 Or windows Me 98? iTunes will only run on XP and 2000

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USB device not recognized ... any help ?

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