j.brewel@chello.nl wrote:
> My system is an ACER AMD64 PC connected with the internet through a router
> Linksys WRT54G.

I mentioned it earlier (this has happened to me a few times with another
computer). Make sure that in the laptop you have the Default Gateway filled
with the IP address of your router (192.168.1.1 or whatever number you
assigned).
If this is set, can you ping the router?
If so, then your computer cannot find the name servers. Check (with yast)
that the DNS nameserver addresses are filled. For some reason I have
experienced that these are sometimes not set up automatically. Find out
what the DNS name server addresses are in Windoze and then put those names
in by hand (again using yast). Those addresses should also appear in the
router (log into the router using the web interface and in one of the tabs
(near the right end, sorry I am not near my router now) these appear (and
there is a refresh button).

If you cannot ping the router, then the problem is the wifi connection (or
are you connecting by cable?).

I hope it helps.
-G-