problem logging into yahoo mail

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I'm using win98se with ie6 installed i get this error when i try to logged in
to yahoo mail " Bad Request
Your browser sent a request that this server could not understand.
Request header field is missing colon separator.


_lnWnMzj2VVrAyA.Qp7Sr2tw3vGpsdOnB.jBRcqk5MCj5uGtwkZD6VnCgYweb0woQMGSK1a2L79XPkbo5wDnKdkCjT7gc0kD.5fmb3MKHWhtiML_wJR.jroAlSe3JU6M1ab8OUQg0SER2ZuX1s5IDOOnNtAf7nmxKh.Ub893Z016JTGmvALi1RWT.23ve1HwMO5pyKT8G1h7gdLznlRvBEuDuxfUH4yKaSUoWT3CG5FSgOt.L12kOZweXoLYZDGywOa5.p_JwumqwSv5xlInbpwlrmISVu8bHULefJlMeuruFvmhTENN2E9tzV7ooE5RmMG2gbfPHEpA7BfupJjJ3mUwg--&v=1
"

anyone has any advise or solution for this?

thks in advance :)

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