Can't upload - Possible AVRdude config problem

IDE ver 1.6.4 running on Windows 7 with an UNO board. Can't upload, error message returned...

avrdude: error at C:\Program Files\Arduino\hardware\tools\avr/etc/avrdude.conf:332: programmer type must be written as "id_type"

I've gone back to BLINK to check connections, the sketch compiles, but will not upload. I've checked line 332 of the avrdude.conf file and it doesn't appear to relate to the error.

Can anyone suggest a solution?