Arduino/XBee shield battery power issues

Hey there,

I'm running a Duemilanove with an XBee shield. I need the Arduino and shield to be far away from my computer, and was expecting to run it on a 9v battery. Unfortunately, the 9v is apparently not enough to power both the shield an the Arduino (I'm guessing it's a current issue...?) Is there a way to power the shield separately or give the board enough juice to power both? Or do I need to find another way to interface the board with my XBee?

Thanks!

9 volt batteries really make poor Arduino power supplies. I'm running 2 Arduinos with xbee shileds off of 4 AA batteries each, and they work just fine.

I'll give it a shot! Thanks!