I am have a laptop running vista home premium. I have a creditor that only accepts online bill pay. I go to my account, sign in, type in password, it opens to the summary screen, click pay bill and it returns me to the sign in screen. If I try to look at something new it returns me to the sign in screen. I am only able to view the summary page. I have contacted the creditor and they told me it was something to do with my computer. So I called my daughter and asked her if she could pay the bill. She had no problems at all. She was able to open any link on the site. So it is my computer. I have disabled popup blockers, I have cleared cache, I have deleted temporary files. I am such a newbie I hope someone can help.