Tracert... yes/Applications..No

> Hello folks,
>
> Running XP Home w/updates on dial-up and occasionally all
> Internet apps cannot "see" modem!
>
> Outlook returns a modem error, WS-FTP returns a "cache
> full" error and browser returns a blank page (also no
> source view), but no error.
>
> When this happens I can succesfully ping and tracert from
> a command line. IPCONFIG looks normal and all network &
> tcp/ip properties look fine.
>
> The above scenario may happen once every 1-3 days.
>
> Reboot always solves the problem.
>
> I'm a bit at a loss...suggestions?
> Thanks in advance
>
> Howard
>