Problem uploading sketch to Breadboard, getting er

I have just connected my Freduino to a desktop PC running Windows XP , the USB driver loaded correctly and all look well untill I tried to upload a sketch when it failed with a similar error to AMOTY

avrdude: stk500_getsync(): not in sync: resp=0x00
avrdude: stk500_disable(): protocol error, expect=0x14, resp=0x951

The board works fine when connected to my laptop also running Windows XP and it uploads sketches with no problem, any suggestions :o