Accelerometer Showing All Zeros

[flyvin]

I'm trying to get the accelerometer to work using Java, but I'm having some trouble. I'm wiring it with I2C and using the "ADXL345_I2C" class. When I try to print out the x, y, and z values using "getAcceleration()", it just prints out zeros for everything.

I've gone over the wiring a bunch of times and it all looks correct to me. We also checked to voltage on the pins and it seems to change when we shake the accelerometer, so I don't think it's broken. Our java and crio are both up to date (as of today). I've never used I2C before, so there might be something obvious I'm missing. Any help would be appreciated.