I have a Canon Rebel XT, and the flash stopped working. Don't know how it happened and I bought it secondhand(so don't have the reciept). The flash will pop up like it should, but no light. I assume the bulb is burnt out. Does anyone have any suggestions on how to get it fixed? ...how to get it fixed for the least amount possible? Would it be better to send it in to Canon or to get it fixed at some private camera shop? Or is it something I could do by myself? Thanks