Puppy's legs shake

My playful puppies legs tend to shake a lot when sitting. I installed the nimh code from ardunio ver 0022 as per suggestion, as apparently the code doesn't work with 1.0+. The legs shake really badly when sitting, mostly the right front and left back legs. I'm pretty sure the batteries are charged and the parts are not loose. Is there a way to fix this? It didn't do that when I used the 1.03ish version to upload the code.

Flea collar :o Sorry,

Flea collar :o

 

Sorry, couldn’t resist…

Not sure a flea collar will

Not sure a flea collar will work on this bug. :stuck_out_tongue:

 

Oh man… that joke was aweful… >_<