Summary:

When running an Intel Viiv chipset without Windows Media Center edition, an unknown device with PnP ID "ACPI\AWY0001\2&DABA3FF&0" is shown as an unknown device.

This is the Intel Quick Resume Technology - either disable it in the BIOS, or install the driver.

Recommendation:

Disable it in the BIOS if possible.

Solutions:

Intel Quick Resume Technology - QRTD
To disable Intel QRTD the BIOS, complete the following steps:

In the BIOS, select Power.
Select Intel QRTD.
Select disable.
Select Exit and save.

Note: Intel QRTD is needed for Intel® Viiv™ Technology? brand verification and future updates.
http://www.intel.com/support/desktopplatforms/viiv/sb/cs-022023.htm

Driver: http://www.intel.com/support/desktopplatforms/viiv/sb/CS-021769.htm
Download: http://downloadcenter.intel.com/Product_Filter.aspx?ProductID=2223

Update: 07/02/2008

Because Intel decided to remove all the links, here are the direct download links: (I believe newer versions work on XP as well.)

Version 1.53 WinXP http://downloadmirror.intel.com/12514/a08/ivt153_setup_multi.exe
Version 1.6 http://downloadmirror.intel.com/12564/a08/ivt1602_setup_multi.exe
Version 1.71 Upgrade http://downloadmirror.intel.com/13949/a08/ivt171_setup_multi_upgrade.exe

You may also try: http://support.gateway.com/support/drivers/docexpress.asp?st=pn&param=1014151