What am I doing wrong ?

[malc-c]

Try these settings instead of yours especially for "RC_OSC_NOCLKOUT" ;

@ DEVICE PIC12F675, INTRC_OSC, WDT_OFF, MCLR_OFF,PROTECT_ON

Thanks for the suggestion, but I now get a warning when I try to compile (using MPSAM) - it states "Found lable [DEVICE]" and "Illegal Opcode [12F675]"