If it's any consolation I'm experiencing the same problem with 1.5ZC/i386 from 2002-04-10 with mozilla 0.9.9.
It doesn't however occur with opera 5 from pkgsrc.
Putting back my old 1.5.2 kernel makes things happy again.

Rob

At 06:53 PM 4/11/02 -0600, you wrote:
>On Thu, Apr 11, 2002 at 02:37:27PM +0300, Martti Kuparinen wrote:
>> 
>> Anyone having problems with the Linux emulation(?) and Netscape 4.79
>> in 1.5ZC/i386? I updated my host today (Apr 11 11:19:08 CEST 2002) and
>> Netscape won't work after showing the initial screen, it just hangs after
>> displaying "Connect: Looking up host: www.netbsd.org". tcpdump doesn't
>> show any DNS activity...
>
>  Yes.  I upgraded kernel and userland April 6 (Sat Apr  6 09:54:30 MST 2002),
>as well as upgrading suse to 7.3 and netscape to 4.79, and now netscape is
>unable to look up any hosts.  I temporarily snarfed a copy of 4.77 from
>another machine, and it had the same problem on the upgraded machine, so
>it's evidently not a problem with netscape.  I haven't had time to
>investigate further.
>
>> My old kernel (Apr  5 09:52:16 CEST 2002) works just fine...
>
>  Sounds like a good clue.
>
>--Jim