hoy again, couldnt edit my previos post to add this, but...
for some reason my gps data isnt being recieved by the arduino, no idea why since the data is reading ok on the pc thru the serial monitor, i also sent the data to the arduino from the serial monitor and it displayed 'aquiring fix' meaning its working. so both devices are seeingly ok.
GPS mouse is sending the ttl at 3800 baud, the arduino is listening at 3800 too, but its not responding to the gps data its being fed by the gps, but wen i test via the pc both seem to be doing what they are supposed to do, gps is sending coherent data, arduino is recieving data sent from the pc (manually) but when connected together.. nothing. just the 'arduino gps v2.0' splash screen..
any help would be really good atm cos im a bit stuck, short of runnig the gps to the arduino thru a rs232 to ttl converter to take it from the gps's ttl to rs232 and back to ttl for the arduino, just out of curiosity really..