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Need help on USBMem of Nohau LPC2800 Evaluation Board

I have a problem running USBMem code
from the Keil example with Nohau LPC2800 Evaluation Board.
When I connect the board with my pc running with Open SUSE 10.3 x86_64 bit system. It give this error:

new high speed USB device using ehci_hcd and address 4
device descriptor read/8, error -71
new high speed USB device using ehci_hcd and address 5
device descriptor read/all, error -71

But when I remove the ehci_hcd mod from my pc, it will run
fine with full speed.

Is there any way I can make it run without remove ehci_hcd mod?

When I check the USBIntStat of USBMem while running,
it prints out 0 ( which is for low speed) can anyone know how to make USBMem run at high speed?
The USBMem code is at C:\Keil\ARM\Boards\NOHAU\LPC2800\USBMem.

Thank you,

Tho