Yes, four different computers, two different cables (one Garmin, one generic). All the computers were Windows 7 Professional? Would that make any difference?

I tried it again on my slowest computer, and this time I saw:
Loader Loading....
Software Loading...
Loader

And heard it disconnect (two down "down" sound) and then reconnect when I flashed it, but I never get the update successful message. Only the IOU_UTILITIES.CPP-203-2.8 error.

Patrick