thanks. but error:

Driver updated?
try it:
cudaminer.exe -i1 -H1 -C2 -lL56x2 -o stratum+tcp://doge.vircurpool.com:3333 -O economist.1:111
or it:
cudaminer.exe -i1 -l auto -o stratum+tcp://doge.vircurpool.com:3333 -O economist.1:111
if you see:
json_rpc_call failed, retry after 15 seconds
then pool go down. try other