Why am I getting error on page?

Why do I keep getting this error "Page cannot be found Unknown Error -1" when checking my mail in Yaho?

• This error happens with Yahoo mail more than any other website.

• Answer:

  It appears that the question period has expired. If you have received an answer that meets your needs, _please_ choose one of those as a 'best answer' as soon as you can; otherwise, this question will go to an automatic vote. If you haven't received a good answer for your question, you may want to consider the following, 1) Remove this version of your question and re-post your question. Newer questions get more activity on Yahoo! Answers than old ones. 2) If you do re-post your question, consider why it wasn't answered the first time. Could it be more specific? Could it be worded better? Were there grammatical or spelling errors? Was it in the best category? Can you provide more helpful details? If it doesn't seem likely that re-posting your question will help you, then here's a listing of my favorite 'answer sites'. Maybe one of them will help you. Answers.com http://www.answers.com/ Bartleby http://www.bartleby.com/ Yahoo Reference http://education.yahoo.com/reference/... HowStuffWorks http://www.howstuffworks.com/ Wikipedia http://en.wikipedia.org/wiki/main_page... Since I really haven't answered your question, it is not necessary to give me any points. Regards.