Scott,

Instead of using ICD-U software, try download and use MACH X software. But you need to use the newest ICDU software, and upgrade the firmware first prior of using the the new MACHX software.

Downloading step :
1. Open MACH X
2. Browse /open the *.hex generated by PBP
3. in the MACHX click CONFIGURATION/ID, then click on any
configuration hex number located in the left side row.
Do NOT change the number just click it, as if you want to change.
4. Then click SAVE AS button, save the *.hex to a new name
(whatever.hex)
5. Then click BURN CHIP
6. Trust this would work.