Dial Up Networking / outlook express

1. Before I upgraded win98 to win98se it was possible that dial-up networking could dial again when the ISP tel line was busy. Now if once gives a busy tone it can not dial again and falls into "...busy" mode although re-dialing is et to 10 times, and re-dialing time is 5-10 sec. (I changing whwn no success)
2. I use ms ie 5.50. Whenever I open outlook express my set identity returns with "enter your username and password". I do, but the same message comes again. I cnaged security levels, made many things, but his problem still exists. It was not like this before upgrading.

Thanks in advance who replies.

Ugur Kurul