Ok, let's analyze what has happened sofar and draw some conclusions.
F=Fact
C=Conclusion
F- At a point everything worked.
F- I've seen 98se, Incredimail and Avast working on several systems without problems
C- So it is not the applications
F- "Bob, when I tried to get the url up; it gave me the 317 error again, but after a couple of crashes etc, I managed to find the list of errors"
C- So you not only have problems with the mail
F- You did a repair install of the OS
F- It didn't solved the problem
C- So either the problem lies deeper in the software (OS) or is hardware related
F- "the next step is a new system (XP) perhaps?


"
C- Do you always buy a new car just because the one you have won't start?
Ok, here we go:
1) What did you change (settings/progs) just before it started?
2) What happens if you try to send mail with Outlook (express)? (I think it doesn't work)
3) Does FTP work?
4) Did you install latest drivers for ALL devices?
5) Did you try another network card/modem?
6) Did you try a clean installation of 98se?