"kppp ate my resolv.conf" seems a popular cry on KDE mailing lists. Try checking the DNS tab on "Edit Account" panel. Maybe toggling "Disable existing DNS" will help. If it doesn't, for brute force "chmod a-w /etc/resolv.conf" to stop kppp writing to it, but it might moan.
Thanks. It's happening on my Mum's SuSE 8.2 Personal box as my 8.2 Pro box has no problems. I will investigate further next time I go round.
You've made me realise that it is an insecure set-up. So I was wondering how other dial-up Linux users connect - what is the preferred method? SuSE does have a system that's supposed to dial & connect automagically upon receiving an http request - but it was terribly unreliable so I disabled it and went with kppp instead.
Rgds,
Martin