Thanks to you both for the replies. I have an umbrella tree that I could move into his cage. Maybe he'll be happy then. The other cage is across the room but I'm gonna cover the front side in his view with newspaper to see if that's the issue.
Also, I was wondering if anyone uses water...
Chameleon Info:
Your Chameleon - Male veiled aka Chamaeleo calyptratus, about 2 years old.
Handling - Daily. He immediately comes onto my hand when I open the cage (he knows he's about to eat heehee) and for trips outdoors.
Feeding - 8-12 insect a day depending on size. 10 crickets, 12...