0xa4051300 'Unknown board'

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Just got my DUO this morning and am having a problem. Hope someone can help.

At the moment im simply trying to upload an example sketch but I am getting the following error:


Board: Unknown board @ 96000000 Hz (0xa4051300)
Board mismatch!!!.
Board is:      0xa4051300 'Unknown board'
Sketch is for: 0xb4051300 'Unknown board'
Im running Windows 7 64 bit and have the board set to the correct type and serial port (according to the tutorial video).
Any ideas or suggestions would be greatly appreciated.

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