Well, if you have double cleaned and double checked everything and it all appears as it should and assembled correctly, maybe checking GE's web page is in order. Sometimes thier frequently asked and FAQ pages have helpful information as there is always the possibility that another customer has had the same problem as you.
Barring that, I would directly contact thier customer service department for help.
Barring that, I would go with what Love2"Q" said.
I too have a GE stove, and while it is a completely different model, I have noticed that the electric sparks and burners are very very very touchy. If I dont get them just right it wont light and I have to use a lighter. And if the burners are not just right it doesnt 'flame' right or even flame at all.