Reset the TCP stack. http://support.microsoft.com/?kbid=299357 Reboot and done. I've found in some customers PC where they have gone from a dialup stack to DSL NIC, things are good. Where it gets weird is going back from DSL to Dialup. Reset the stack and make sure you've pulled the nic BEFORE the stack gets reset. For some reason it wants to only reset the NIC stack if both pieces of hardware are present. You mean you haven't had it YET. My favorite is when the daily updates hit and don't finish the compile properly. Suddenly you've got a half compiled driver, a kernel dumping all over the place and all you can do is pray for a good backup. You should check out the noise that is made by some of the linux distros, especially the ones people pull off the torrents. Nothing but rootkits. In fact most of the zombie spam comes from all of those "official" releases because people just compile their own pieces into them and drop them in the torrents. The torrent weights the seeds and puts it at the top of the list. Volia instant rootkit zombie linux army and because most people don't verify they stay oblivious to that fact "all their base are belong to *someone else*" If you bought the linux title at the store or verified it's same MD5 hash from the real vendor, it's legit. If not, better start running the decompiler and looking for the nasty. After all the term root kit comes fromt he *nix side of the universe. When it happens on windows it's because the RIAA wants to catch piracy, when it's done on *nix, it's usually for "other" reasons.