hi paul,
if i dont send a blank print if no switch is pressed.. the shield disconnects after sometime. .like 10 secs.
ill remove the delay and try..hopefully that should fix things
i have tried this on 3 setups..
1.windows 7 machine with wifi...works perfect
2.a mac mini over wifi. .. lags
3. on android note/ipad. ..lags almost the same as the mac mini.
regards
danneskjold