Your GF should have done the proper research before getting the animal, if she hadn't done so already...
The information that amercnwmn provided is the best.
These are the vitamin supplements you want to use. I use them and it's the best stuff you can buy. If your little chameleon is still eating, dust the crickets (or other food) with calcium first, then the next feeding, feed the multivitamin powder.... just alternate the calcium and vitamin powder for each feeding.
Multivitamin powder
http://www.reptiledirect.com/index.a...ROD&ProdID=550
Calcium ultrafine powder w/ D3
http://www.reptiledirect.com/index.a...ROD&ProdID=553
Regular calcium powder w/ D3
http://www.reptiledirect.com/index.a...ROD&ProdID=556
Calcium
http://www.reptiledirect.com/index.a...ROD&ProdID=559
