Can't get Blink sketch (and others) to work on my Due

Hello dinofizz. Could you show us the full verbose output of your Blink. Should be something like:

Binary sketch size: 9,660 bytes (of a 524,288 byte maximum)
C:\Users\Your Name\Downloads\arduino-1.5-windows\arduino-1.5/hardware/tools/bossac.exe --port=COM22 -U true -e -w -v -b C:\Users\Your Name\AppData\Local\Temp\build4389900953890578969.tmp/Blink.cpp.bin -R
Erase flash
Write 9740 bytes to flash

[ ] 0% (0/39 pages)
[======= ] 25% (10/39 pages)
[=============== ] 51% (20/39 pages)
[======================= ] 76% (30/39 pages)
[==============================] 100% (39/39 pages)
Verify 9740 bytes of flash

[ ] 0% (0/39 pages)
[======= ] 25% (10/39 pages)
[=============== ] 51% (20/39 pages)
[======================= ] 76% (30/39 pages)
[==============================] 100% (39/39 pages)
Verify successful
Set boot flash true
CPU reset.