no ISDN device available error messg after switching from modem to isdn card (SuSE 9.0 Prof)

Hi,
"no ISDN device available" appears during boot when configuring network
interfaces. Then, configuring network interfaces appears a second time and
this time it says "ippp0 askpassword=yes". So, the isdn interface is
initialized the second time succcessfuly. Is this *one* startup script or
is it two and can I safely delete or rename the first one? Does anybody
know how to fix this?

This cosmetical "error" occurs after I've switched from external ISDN TA
(Elsa Microlink ISDN TL V.34) to an internal ISDN card. And, yes: I've
deleted the Modem configuration with Yast before configuring the ISDN card.

Many thanks in advance,
-Stefan

--
"If you think technology can solve your problems you don't understand
technology and you don't understand your problems." (Marcus J. Ranum)