opera v 5 problem

My daughter and I have both SuSe 7.3 with Opera 5 installed. We have both the same internet bank connection. I am able to do my banking business, my daughter can not make contact with the bank. Opera version 6 and Konquerer do not work with this connection for whatever reason. I want to compare our opera setups and would like to know which files contain the important configuration information. Somebody can help there? --