Multi-touch screen not recognized

Question

I have a  brand new W510 configured with Windows Ultimate x64.  
Within a few hours of running the machine, the touch screen stopped responding.  A reboot fixed that.  This happened several more times, and then rebooting stopped working.
Disabling then re-enabling the USB devices was the next step, and that worked for a while (in computer management/device manager/Universal Serial Bus controllers, right-click and select "disable" then right-click and select "enable").  That stopped working last night.  I upped the response to uninstalling ALL of the usb devices under the "Universal Serial Bus controllers", rebooting, and letting Windows 7 x64 re-install them on boot.  Worked a few times, and now that isn't working.
I'm starting to think that there is a loose connection internally between the multi-touch device controller for the screen and the USB connector, but all of the other device drivers for the W510/Windows 7 x64 combination seem buggy enough that I can't rule out a really buggy driver.
The problem device seems to be listed as an "unknown device" enumerated under the "Universal Serial Bus Controllers" entry in device manager.  Here is a dump of some of the data about that device:
{36fc9e60-c465-11cf-8056-444553540000}
{36fc9e60-c465-11cf-8056-444553540000}\0009
Port_#0008.Hub_#0004
\Device\USBPDO-7
{9d7debbc-c85d-11d1-9eb4-006008c3a19a} (bus type guid)
00000008 - address
PCIROOT(0)#PCI(1D00)#USBROOT(0)#USB(1)#USB(8) - location paths
USB\VID_0000&PID_0000\6&94BCF13&0&8 - device instance path
USB\VID_8087&PID_0020\5&43cf376&0&1 - parent
USB\VID_17EF&PID_1003\6&94bcf13&0&5 - siblings
usb.inf:Generic.Section.NTamd64:BADDEVICE.Dev:6.1.7600.20589:usb\unknown - driver node strong name
{36fc9e60-c465-11cf-8056-444553540000}{36fc9e60-c465-11cf-8056-444553540000}\0009Port_#0008.Hub_#0004\Device\USBPDO-7{9d7debbc-c85d-11d1-9eb4-006008c3a19a} (bus type guid)00000008 - addressPCIROOT(0)#PCI(1D00)#USBROOT(0)#USB(1)#USB(8) - location pathsUSB\VID_0000&PID_0000\6&94BCF13&0&8 - device instance pathUSB\VID_8087&PID_0020\5&43cf376&0&1 - parentUSB\VID_17EF&PID_1003\6&94bcf13&0&5 - siblingsusb.inf:Generic.Section.NTamd64:BADDEVICE.Dev:6.1.7600.20589:usb\unknown - driver node strong name
Early on I had a problem earlier with the NEC USB 3.0 Host Controller driver, but the Windows 7 troubleshooter fixed that.  Looking at its log, it looks like it also temporarily fixed the problem with the touch screen USB connection, and that was before I took the steps I outlined above.  Here is the output from that:
Intel(R) 5 Series/3400 Series Chipset Family USB Enhanced Host Controller - 3B34 has a driver problem Fixed  
There is a problem with the driver for Intel(R) 5 Series/3400 Series Chipset Family USB Enhanced Host Controller - 3B34. The driver needs to be reinstalled. 
Device information 
Name: Intel(R) 5 Series/3400 Series Chipset Family USB Enhanced Host Controller - 3B34 
ID: PCI\VEN_8086&DEV_3B34&SUBSYS_216317AA&REV_06\3&E89B380&0&E8 
Error code: 10 
Reinstall device driver Completed 
There is a problem with the driver for Intel(R) 5 Series/3400 Series Chipset Family USB Enhanced Host Controller - 3B34. Reinstalling the driver might fix this problem. 
Has anybody else had this problem?  I really don't want to have paid a lot extra for a touch-screen that doesn't have drivers capable of making it work reliably.
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Answer 1

I would have loved to try the Fn + F6 test, but the machine stopped getting past POST, so I can't even get to the BIOS.  The machine just gives the feel that the bios and a lot of the drivers were pushed to production too early, and still behave a bit like beta-phase software.  My plan is to return the W510 (which I really liked for the few moments it was working) and wait probably six months, then order it again.  By then I hope they will have the drivers and bios issues corrected.  There may also be hardware issues (they had trouble with long ship dates, so I wouldn't be surprised if some of the hardware was also not ready for mass production).  Either way, six months is plenty of time for Lenovo to get it all together.
You would think that this experience would sour me on Lenovo, but (absent some surprise in the refund process), I have to say that Lenovo handled this very well.  They apologized, acknowledged that in my position they might well feel the same way, took responsibility for the problem (including paying for return shipping and arranging UPS pickup) and promised a full refund.  They treated me like they view customers as assets, not annoyances.  Despite my bad experience with the hardware, my experience with the company was sufficiently positive that overall, my chances of order from them again are higher now than they were before this incident.
So bad copy of the hardware, or possibly unstable drivers and bios, plus good customer service and taking responsibility for their mistake = increased customer loyalty.  I'm glad Lenovo understands the formula.  Now I just hope my aging T61 holds out long enough for me to order a W510 *after* they work the bugs out.
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