USB2.0 Card reader working at USB1.1 ??

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I have Windows XP Pro, SP1 installed (don't want to upgrade to SP2 due to
some issues with my setup). PC is Athlon XP2200+, 620RAM.

Because the original PC didn't have a USB 2.0 card i bought one. It was an
Ali brand, 4 X USB2.0 PCI card type. I installed the drivers and it works
great. The only issue i have with it is that when i use my Memory Card
reader in it (Trust CR-1200 16in1 reader), things work okay. However, if the
card reader accidentally gets unplugged, then plugged back in again, WinXP
then complains that "High speed device plugged into a Non-High speed usb
hub". The card reader then only works at the USB1.1 transfer rate (unless
rebooted, then it works fine !)

So just a couple of questions:-

1. The card reader is NOT plugged into a hub, so why could it be saying
"plugged into a non-high speed HUB" ?

2. (Most important). Why does it work at USB2.0 rates, yet when unplugged
and plugged back in, it complains that it is plugged into a non-high speed
port (i.e. it then only works at USB1.1 rates, unless rebooted then
everything is okay again) ????

I have re-installed the drivers for the PCI-USB 2.0 card and the drivers for
the Trust 16-in-1 card reader, so why does this happen ?.

I have even tried plugging the card reader in a different USB slot (thinking
it may be a dodgy USB slot), but the same thing happens again. All other
hardware (scanner, USB broadband modem, camera etc) work fine. It seems like
it may be a driver problem. Could it just be this specific brand/type of
card reader in conjunction with the type of USB PCI card that is causing
these problems ??


Many Thanks
Andrew


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