I ran the test utility you decribed here
http://www.mp3car.com/vbulletin/streetdeck-f-q/79500-could-not-find-any-compatible-direct3d-devices-error.html
and everything passed OK. Is there some other program I can use to stress-test this component to rule out a hardware issue?
Note that the issue occurred with the PC installed in the vehicle (under SUV passenger seat, lots of air circulation) and on my desk.
As for running with -GDI, I have not yet done so. What does that do?
P.S. -I have tried editing the shortcut to add command line parameters, but I get an "invalid path" error or something to that effect when I try to save the change. In typical noob fashion, I must be missing something obvious.
Thanks!