I am now having a similar problem...same mobo, same OS...
I have been using a card reader for my camera, a SUB 2.0 item and it works fine. Over teh weekend i got a box to put an IDE drive in, and it is to conect to a USB 2.0 port. If i connect it through my 1.1 hub, it works. I get the 'connect it to a USB 2.0 to work faster" message, but when i try that windows does not recognize it at all. I have tried all 4 ports.
Since one item works and the other does not, I have to assume a driver revision or perhaps some bizarre conflict.
Any ideas??
The only other info i can get is in Event Viewer, I get "The system failed to flush data to the transaction log. Corruption may occur." Id 57. I can find to help or reference on that error.
"