XPE stops boot process with USB Elo Touch Screen

Hello

I´m using XpE on an dt166 minipc system by dt research.This hardware
is based on an AMD Geode LX-800 (500 MHz) processor. Furthermore i use
a touchscree by elo connected via USB to the mini pc. When the
touchscreen is connected to the pc the XPE startup sequence stops. I
see the XPE splash screen with the progress bar running, but the xpe
doesn´t boot further. When I disconnect the USB connection to the
tousch screen and reconnect the boot process continues immediately.
The XPE boots and everything works fine.

The same touchscreen with the same drivers is running on a celeron
based properly. So I suppose the reason is maybe related to the
combination of Elo touchscreen and geode processor.

Has anybody a useful idea how to manage this problem?

Thanks a lot

chris