I'm having the same problem.. 
this is the error I get when i try to upload the sketch...
avrdude: stk500_getparm(): (a) protocol error, expect=0x14, resp=0x41
avrdude: stk500_getparm(): (a) protocol error, expect=0x14, resp=0x41
avrdude: stk500_set_extended_parms(): protocol error, expect=0x14, resp=0x45
avrdude: stk500_initialize(): failed