10.0: no net, now what

I just installed Suse 10.0 from the CD's--I can't boot from DVD, for some reason--and I can not reach the internet. 9.2 worked. 8.2 worked. 10.0--zip. Maybe it's due to the firewall that is installed automatically? I have a Linksys router with a firewall, I don't know why I need one from Linux. This is the same machine, and as you see, the Windows connection to the net works fine. I'm not a computer maven, so I would appreciate a solution in words of one syllable. TIA--doug -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.344 / Virus Database: 267.12.4/146 - Release Date: 10/21/2005