well if you have only had him for 5 days he is probably still scared. Also if he came from a bad home he is adjusting to that too. give him some time. Try to take an old shirt or something that you have worn that you dont mind getting really nasty and putting in his viv. That way he can get used to your smell. Also wait until it is close to lights out time when he is sleepy to try to hold him. That way he will be calmer. Then wrap him in the shirt or towel and cuddle with him while watching tv or whatever for a while. Just be patient with him he is still getting used to you and adjusting to a new home.
Can you go over you setup with us too just to make sure something there is not upseting him?
What lights do you have? UVB? Basking? type (coil or tube)?
temps?
what are you checking them with?
what are you feeding him?
how often?
do you
bathe him?
do you use calcium and vitamins? how often?
can you post pix? (you can get a free photobucket account and post on here from there)
thanks