Hi. I have imported the ladyada xbee carrier into an arduino shield pcb, connecting TX-RX, RX-TX, 5V to +5V and GND to GND. I've previously used the same Xbees, code and Arduinos with the Libelium xbee shield, same connections only point-to-point wired.
I can't upload code to the Arduino unless I unplug the XBee. I suspect I screwed something up but wanted to know if anyone knows of anything obvious (or subtle) that might cause this please let me know - thanks!