Possible solution to USB issue
Hi Rick,
I took the following info from "The Green Button", which is a "user powered" forum for Windows Media Center enthusiasts. The writer developed this technique because he too had problems getting USB devices to respond, when he plugged them into different ports.
PLEASE NOTE: This was written with WMC users in mind so, you will see a few references to "ehome" etc, The other thing is, the writer was using XP, NOT Vista
I hope this helps you...
Here's what he wrote:
-Steve
P.S. I have not personally tested this technique so, please make sure to take extensive notes & back up anything you change.
This info is provided "as is" with no guarantees
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..."I've found MANY occasions where you plug in a USB device, and it gets 1/2 detected and fails, and it never works again. If you plug a USB device in to too many ports, it is enumerated as a brand new device every time, and that has screwed it up as well, I've found.
The only solution is to delete it from the device manager, and let it redetect, that's worked 100% of the time for me.
So.... unplug the transceiver for now.
make a batch file (make a text file, then rename it to DEVMGR.BAT) that contains these two lines:
set devmgr_show_nonpresent_devices=1
start devmgmt.msc
and double click it. There is an option under VIEW that says "Show Hidden Devices"
You will be amazed how much crap is in there, all the "grey" ones are non-present devices windows thinks is coming back some day. You may see an "ehome infrared transceiver" in there, or you may see two or three or five of them. All the grey ones are the times you plugged anything into any port (even if it didn't come up all the way), or every time you plugged the same device into different USB ports.
Delete all the "ehome infrared transceiver" ones anyway. Delete any grey ones that look suspect. (remember, grey means they AREN'T currently connected anyway, so it's pretty safe)...
while you're in there you could clean up the 25 different keyboards you've tried in the last three years, 38 mice, 22 usb hard drives/flash drives, etc etc
or not, up to you, LOL
Delete anything with a question mark too, you can redetect those as well, they aren't working anyway. One of those might be your failed USB device.
when you're all done, shut the computer off, reboot, and plug it back in. Hopefully that'll get you going. If not, maybe it's just defective 
good luck"...
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