Thank you very much for your quick reply. I'm sorry for not specificating earlier, but I have PCLOS 2007, it's because the distro I have is CAELinux 2008, which uses PCLOS 2007 with KDE environment. The netapp icon wasn't there, but I did the procedure you said in Konsole to the letter. I also checked that the data about my account was correct by looking at the firmware of my router through Windows. I was also using since before OpenDNS, the only thing I cannot rememebr is if I set it only for my PC or if I set it in the router directly.
Well, whatever the previous, it still doesn't recognize my internet connection. If I go to the control center and I access for example the miscelaneous options, it says "checking status" and then shows "not connected". There is one detail I mentioned wrongly before: by doing sometimes the wizard procedure the ethernet led would flash constantly and quick, as if it were looking for signal, no matter if the system is booting or already loaded. After erasing every connection I tried, doing your steps and rebooting, the intermitent flash would stop completely once PCLOS is loaded. Also, if I put the verbose mode while booting, after loading the "demon something" there is one "fail" indication, which I think it's about the connection (the text scrolls fast and I cannot read it well).
In Windows I had to go to the advanced properties of my NVidia controler and set "Speed/Duplex" to "Force 10 Duplex", otherwise it won't even detect a connection, so I think that's my case. Perhaps I should try without the switch, but my flatmates will kill me, lol (unless they are sleeping, muahahaha).
I have tried changing the host name, clicking DHCP options here and there but nothing changes. If I use the command "pppoe-start" after some time it shows time out. It's not that I'm desperate for internet, but certain packages would make my life nicer in PCLOS, lol... I want Lyx for example or that package that allows me to read and write ntfs partitions.
I'm sorry if this is a too common problem, but I couldn't find any answer in the rest of the forum or the wiki.