New Slacker with a newbie issue.

I installed Slackware 12.1 a few days ago. When I first installed everything worked fine after I used dhcpcd for the correct interface.

X windows was not configured properly so I began to mess with xorgconfig. After making X windows unbootable, I used xorgsetup, rebooted and everything looked great.

But now firefox no longer works ,except for a select few websites (Konqueror work fine), and irssi can no longer connect to irc.freenode.net. iwconfig and ifconfig look good to my virgin eyes. I can still ping everything fine.

Is it possible that messing with X windows configuration screwed with network settings somehow? Or just a coincidence...

I don't know if this will make a difference, but you could try blacklisting the ipv6 module which causes some people trouble. Add the following line to /etc/modprobe.d/blacklist:
You must reboot in order for this to take effect. If you don't want to reboot, you could try removing the module manually using either
or

You will probably find Alien Bob's wiki helpful. It contains detailed instructions on Slackware networking.