cannot upload to my arduino

hi there
cannot upload to my arduino comes up with this fault code
avrdude: stk500_paged_write(): (a) protocol error, expect=0x14, resp=0x64
avrdude: failed to write flash memory, rc=-4
avrdude: stk500_disable(): protocol error, expect=0x14, resp=0x51

im running windows xp and the board is arduino duemilanove and i have not got anything plugged into the board at all
i have had it running on a previous computer before
any ideas???

there is 6 pages of threads with that exact same error in them, good luck

hi again

i have had more of a look around but still cannot seem to find any information specific to my problem could anyone help it would be much aprecciated

thanks Joe

A. Why is this a poll?
B. Look up your error number in google…

i have done but haven't managed to find any information that i havent tried yet lol

Did you compile first? I didn't compile and got an error.

just tried that still no different

thanks though