USB 2.0 Power Issue, Win 2000

Hello I have an issue with my iPod nano 1GB not charging on my Windows 2000 (SP4) computer. I have it connected via an add on USB 2.0 card that claims it is sending 500mA to the connector. Is this considered 'high power' enough for the iPod to charge?
The iPod will connect and sync up via iTunes and the battery indicator in the top right will flash grey to green with the lightning flash overlayed and go solid green for a while but will not continue. The lightning flash will dissapear after a few moments and it will show the normal battery indicator.
Any ideas what is up?
Windows 2000 SP4, newest version of iTunes for Windows, newest drivers for USB add in card have been installed and the device in the control panel (the USB 2.0 Root Hub) shows the hub is self powered and there is 500mA availible per device. I have tried all USB ports on the machine. They all give the same issue... is this an issue with the iPod or with the power coming through the USB ports?

If the iPod is in Auto update (this is the default) iTunes will eject it after it updates and Windows 2000 shuts down power to the USB port. Teh only way to get around this is as youhave found, enable disk use, which keep the iPod connected.
With Windows XP, you can Eject the iPod and still keep power going to the port.

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"Bala" <[email protected]> wrote in message
news:3b3a6c00$[email protected]..
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