Hi kucza,
Thanks,
The Stalker demo sketch (fat16lib??) which i was planning to use as a base for my sketch did not like the 8gb sd card I had to hand, but SD.h did, thats it really. and I did not want to format my SD card from Fat32 as it was my phones, and it had stuff on it when I started putting the sketch together.
Oh what do you mean by RFID logins?