upload Problem Lilypad Arduino

I am having problems uploading to the Lilypad, and getting following error:

avrdude: stk500_getsync(): not in sync: resp=0x00 avrdude: stk500_disable(): protocol error, expect=0x14, resp=0x51

I have checked the port, I have checked the board, I have pressed the reset button before clicking upload.

Appreciate your help