GottaBeMobile.com forum member krdu has gotten very close to solving the Dell Latitude XT / N-Trig digitizer issues, thanks to some persistent dialogue with N-Trig. Apparently, N-Trig is aware of the problem driver and boot-up problems causing the “digitizer not found” errors, which involves a driver called GearAspiWDM.sys which is made by a company called Gear Software and is consequently modified by iTunes. Thanks to some good hard detective work by krdu, we might be very close to solving this.
krdu offers up some temporary bandaids that some brave souls might want to test out and verify, but this looks quite promising. Dell and N-Trig - how about taking a look at this for us and releasing a fix already, k?